Questions on Algebra: Equations answered by real tutors!

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Question 668029: How many solutions are there to the equation below?
6x + 8 - 2x(7 - 2) = 2(6 + 1)

A.
1

B.
0

C.
infinitely many

Click here to see answer by ReadingBoosters(3246)

Question 668104: -8 is less than or equal to 3r-1 is less than or equal to 1
Click here to see answer by stanbon(75887)

Question 668104: -8 is less than or equal to 3r-1 is less than or equal to 1
Click here to see answer by okpuente(1)

Question 668189: 2-c>-2
Click here to see answer by ReadingBoosters(3246)

Question 668189: 2-c>-2
Click here to see answer by swincher4391(1107)

Question 667660: The quotient of -36 and 9, subtracted from 4 times a number, is -8. What is the number?
Click here to see answer by gwendolyn(128)

Question 667874: 0.5(6x + 2) = 1.5 - (x + 2)
Click here to see answer by gwendolyn(128)

Question 668276:
Click here to see answer by ReadingBoosters(3246)

Question 668318: Solve the equation (3/x-4)=1+(5/x+4)
Click here to see answer by mananth(16946)

Question 668399: I know the answer to this question but do not know how to show the work
Solve for b when b+ -3 = 12
Click here to see answer by Alan3354(69443)

Question 668426: Please show how to solve and check the following: 6x + 18 = -2x -62
Click here to see answer by stanbon(75887)

Question 668423: 1/4(7+3g)=-g/8
Click here to see answer by stanbon(75887)

Question 668396: A^2X^2-B^2Y^2
Click here to see answer by Alan3354(69443)

Question 668387: At the start of the School trip to Washington DC the tour bus has 40 gallons of gasoline in the fuel tank. Each hour the bus uses 7 gallons of gasoline. The bus will stop for gas when there are 10 gallons left.
A. Make a table to show how many gallons of gas are remaining in the fuel tank after each hour.
B. Write and solve an equation to find how many hours will pass before the bus will have to stop for gasoline.
Answer we came up with for part A.
gallons/ Hours
40/0; 33/1; 26/2; 19/3; 12/4; 5/5
we took the total gallons (40) and subtracted 7 gallons for each hour to get this chart.
Part B. we are not sure how to write the equation.
This was our attempt: 40 gallons - 7/60 = 10 gallons
7/60 represents the 7 gallons used each hour. 60 = min per hour.
But we are not able to get a correct answer. So what are we doing wrong?
Can you help please?
Click here to see answer by ankor@dixie-net.com(22740)

Question 668541: Please help me solve this equation: 8(k-9)
Click here to see answer by solver91311(24713)

Question 668568: 6p-3>9p
Click here to see answer by swincher4391(1107)

Question 668573: Could you help me solve this problem?

Click here to see answer by ReadingBoosters(3246)

Question 668616: what is 35n-1=46

Click here to see answer by ReadingBoosters(3246)

Question 668709: whats the equation for the line through (5,7),(6,8)?

Click here to see answer by MathLover1(20849)

Question 668798: You are buying flowers to hand out at a school dance. Roses Cost $30 for a dozen but cost more if bought individually. With the money you have you can buy 7 dozens and 4 single roses, or 64 single roses. How Much Is one rose? How Much Money do you have?
Click here to see answer by amazingrace333(11)

Question 668874: how to do algebric proof on my paper it says givin m<1=4x+9, m<2=7(x=4) then after that it says find m<3 under that it says proof then it gives me a chart that u have to feel in with the reasons that was the statments

Click here to see answer by Edwin McCravy(20054)

Question 668885: Write the equation in slope-intercept form. What are the slope and y-intercept?
This question needs the equation, slope and y-intercept.
-11x+9y=-12
Click here to see answer by ewatrrr(24785)

Question 668886: What is the equation of the line in slope-intercept form? the line perpendicular to y = 1/3x+5 through (2, 1)
A) y = 1/3x+7
B) y = -3+7
C) y = 3x+7
D) Y = -1/3x+7
Click here to see answer by MathLover1(20849)

Question 668888: What is the equation of the given line in standard form? Use integer coefficients.

y = -6.9x + 5.1
A. -69x + 10y = 51
B. 69x + 10y = 51
C. 69x + 10y = -51
D. -69x + 10y = -51
Click here to see answer by ewatrrr(24785)

Question 668887: What is the equation of the given line in standard form? Use integer coefficients.
y=5/7x-12
A) -5x+7y=-12
B) -5x-7y=-84
C) -5x+7y=-84
D) 5x+7y=-84
Click here to see answer by ewatrrr(24785)

Question 668929: I'm sorry if I had broken any rules, but I couldn't find a way to put this on the website directly. The link directs you to the problem. Sorry for that. Thank you so much.

http://postimage.org/image/f2akxmmon/
Click here to see answer by lynnlo(4176)

Question 668951: What value completes the square for the expression?
x^2 - 18x
A. 9
B. -9
C. 81
D. -81
Click here to see answer by stanbon(75887)

Question 668959: Simplify the number using the imaginary unit i.
√-144 <-- square root of negative one hundred forty four
A. 12
B. -12
C. 12i
D. 144i
Click here to see answer by stanbon(75887)

Question 668979: A BASKETBALL PLAYER SCORED 5 TIMES DURING ONE GAME. HE SCORED A TOTAL OF 7 POINTS, 2 FOR EACH FIELD GOAL AND 1 FOR EACH FREE THROW. HOW MANY FIELD GOALS DID HE MAKE AND HOW MANY FREE THROWS?
USE (X,Y)
_=5
_=7
Click here to see answer by vleith(2983)

Question 668986: Solve this by graphing: x2 +2x - 8 = 0
I had tried to graph this for several hours, but I still can't figure it out. Please help !
Click here to see answer by ewatrrr(24785)

Question 668991: Use the Quadratic Formula to solve the equation.
-2x2 - 5x + 5 = 0
A) -5/2 [+ or -] √65/2
B) -4/5 [+ or -] √130/4
C) -5/4 [+ or -] √32/2
D) -5/4 [+ or -] √65/4
Click here to see answer by ewatrrr(24785)

Question 668998: Find the solutions of the equation.
1/2x^2-x+5=0
A) 1 [+ or -] √9i
B) 1 [+ or -] √11i
C) -1 [+ or -] √9i
D) -1 [+ or -] √11i
Click here to see answer by jim_thompson5910(35256)

Question 668998: Find the solutions of the equation.
1/2x^2-x+5=0
A) 1 [+ or -] √9i
B) 1 [+ or -] √11i
C) -1 [+ or -] √9i
D) -1 [+ or -] √11i
Click here to see answer by MathLover1(20849)

Question 668957: Use the Quadratic Formula to solve the equation.
-2x2 - 5x + 5 = 0
Click here to see answer by jim_thompson5910(35256)

Question 668987: 4(2x+3)=5
Click here to see answer by jim_thompson5910(35256)

Question 669010: How many roots do the following equations have?
-12x2 - 25x + 5 + x3 = 0
A. 2
B. 3
C. 4
D. 5
Click here to see answer by jim_thompson5910(35256)

Question 669010: How many roots do the following equations have?
-12x2 - 25x + 5 + x3 = 0
A. 2
B. 3
C. 4
D. 5
Click here to see answer by lynnlo(4176)

Question 669022: Find the roots of the polynomial equation.
-x3 + 5x2 - 11x + 55 = 0
A) i√11, -1√11,-5
B) √11,-√11,5
C) i√11,-5
D) i√11,-i√11,5
Click here to see answer by lynnlo(4176)

Question 669022: Find the roots of the polynomial equation.
-x3 + 5x2 - 11x + 55 = 0
A) i√11, -1√11,-5
B) √11,-√11,5
C) i√11,-5
D) i√11,-i√11,5
Click here to see answer by ewatrrr(24785)

Question 669014: Use the Rational Root Theorem to list all possible rational roots of the polynomial equation x3 - 4x2 + 7x - 8 = 0. Do not find the actual roots.
A. �8, �1, 1, 8
B. �8, �4, �2, �1, 1, 2, 4, 8
C. 1, 2, 4, 8
D. no possible roots
Click here to see answer by jim_thompson5910(35256)

Question 669005: Which sum is equal to ?
The link for the problem -> http://postimage.org/image/fg3a0ddht/
Click here to see answer by MathLover1(20849)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045, 36046..36090, 36091..36135, 36136..36180, 36181..36225, 36226..36270, 36271..36315, 36316..36360, 36361..36405, 36406..36450, 36451..36495, 36496..36540, 36541..36585, 36586..36630, 36631..36675, 36676..36720, 36721..36765, 36766..36810, 36811..36855, 36856..36900, 36901..36945, 36946..36990, 36991..37035, 37036..37080, 37081..37125, 37126..37170, 37171..37215, 37216..37260, 37261..37305, 37306..37350, 37351..37395, 37396..37440, 37441..37485, 37486..37530, 37531..37575, 37576..37620, 37621..37665, 37666..37710, 37711..37755, 37756..37800, 37801..37845, 37846..37890, 37891..37935, 37936..37980, 37981..38025, 38026..38070, 38071..38115, 38116..38160, 38161..38205, 38206..38250, 38251..38295, 38296..38340, 38341..38385, 38386..38430, 38431..38475, 38476..38520, 38521..38565, 38566..38610, 38611..38655, 38656..38700, 38701..38745, 38746..38790, 38791..38835, 38836..38880, 38881..38925, 38926..38970, 38971..39015, 39016..39060, 39061..39105, 39106..39150, 39151..39195, 39196..39240, 39241..39285, 39286..39330, 39331..39375, 39376..39420, 39421..39465, 39466..39510, 39511..39555, 39556..39600, 39601..39645, 39646..39690, 39691..39735, 39736..39780, 39781..39825, 39826..39870, 39871..39915, 39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580