Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 720674: solve all real and imaginary solution
z^4-16=0
Click here to see answer by Alan3354(69443)

Question 720835: Solve and check the equation: 6y=9x3 Answer: 9=(3/2)x3

Click here to see answer by stanbon(75887)

Question 720753: Translate this sentence into an equation.
43 is the sum of 18 and Goran's savings.
Use the variable g to represent Goran's savings.
Click here to see answer by rfer(16322)

Question 720847: Hello, may you please help me on this problem.
N of the 34 coins are quarters. The rest are nickels. The total value of the coins are $5.30. What is N?
Thank you! Please show work so I can understand this problem more. Thank you again!

Click here to see answer by MathLover1(20849)

Question 720858: Hello, may your please help me on this problem?
Sandra is Y years old . In 14 years her age will be 3 times her age 14 years ago. What is Y?
Thank you!
Click here to see answer by jim_thompson5910(35256)

Question 720906: -x^3-27
Click here to see answer by lenny460(1073)

Question 720939: if x=5 then what is the answer to 5(3x+4)
Click here to see answer by Edwin McCravy(20055)

Question 720939: if x=5 then what is the answer to 5(3x+4)
Click here to see answer by checkley79(3341)

Question 720953: which equation represents the graph of a line parallel to the y-axis?
a)y=3
b)x=-1
c)y=x
d)y=-x
Click here to see answer by Edwin McCravy(20055)

Question 720959: I have 4x+9y=15 how to I get it in to this formula y=mx+b
Click here to see answer by rfer(16322)

Question 721051: Translate the phrase into a mathematical expression and then simplify.
Five times a number decreased by twice the same number. Write the corresponding mathematical expression.
Click here to see answer by lynnlo(4176)

Question 721061: Simplify the expression -3(4x+5)-2(-5x+8)
Click here to see answer by lynnlo(4176)

Question 721068: what is an equation?
Click here to see answer by lynnlo(4176)

Question 721174: 4 -3 .[2 (3-5) +1]
My solution was
1. [2 (3 -5)
1. [2 (-2) +1]
2. -2= -4 +1 = -5
The answer was wrong, where did I make mistakes? Thank you
Click here to see answer by Alan3354(69443)

Question 721224: what is the answer to -11=m-7
Click here to see answer by Alan3354(69443)

Question 721251: If 11x -3 = 8x + 6, what does x equal
Click here to see answer by Alan3354(69443)

Question 721257: a book seller sold a book for Rs.70 at a gain of 40%.Find the profit?
Click here to see answer by rfer(16322)

Question 721365: Please help me with domain and range of
f(x)=x√x-4
my domain is [4,sideways 8)
do not understand range.
Please help. Thank you in advance.
Click here to see answer by fcabanski(1391)

Question 721574: Answer the question using this formula
4.9t2+Vot=5
Approximately how far will an object fall in 6 seconds when thrown downward at an initial velocity of 10 meters per second from a plane?
A) 246.6 meters
B) 238.2 meters
C) 236.4 meters
D) 244.8 meters
E) 232.8 meters
Click here to see answer by KMST(5328)

Question 721757: My question is about word problems luckely I can just send you the whole thing.
The Word Problem: "The sum of three numbers is 1032. Determine the numbers knowing the second number is 3 times the first, and the third number is 60 more than half of the first number"
I have my equation set up i just dont know how to solve it
My Equation: a+3a+(a/2+60)=1032
Click here to see answer by josgarithmetic(39617)

Question 721769: I need to simplify these 3 equations?
4+3*5^2
2-4^3 / 8+10
(6^2-2^3)-9 / 3
Click here to see answer by Alan3354(69443)

Question 722122: 1.Write the equation of the line that passes through (2, 2) and (6, 3) in standard form.
2.Write the equation of the line that passes through (2, 4) and (1, -3) in slope-intercept form.
3.
Click here to see answer by Alan3354(69443)

Question 722172: Can someone simplify these please?!
(1/2k)-(1/3k)+(1/6k)

thanks!!!
Click here to see answer by solver91311(24713)

Question 722245: if r = 2b - 4d, find r when b=8 and d=5
Click here to see answer by checkley79(3341)

Question 722277: The product of a two-digit number and the same number with its digits reversed is 3154. Find the sum of the two numbers.
Click here to see answer by ankor@dixie-net.com(22740)

Question 722277: The product of a two-digit number and the same number with its digits reversed is 3154. Find the sum of the two numbers.
Click here to see answer by DrBeeee(684)

Question 722533: Graph 6y+5=-2x+5. Also, give the x-intercept, the y-intercept and the slope.
Click here to see answer by mananth(16946)

Question 355367: -4e-9=19
Click here to see answer by mitch16(1)

Question 722553: Find the equation of the line passing through the point (-1,-4) that is parallel to the line -9+5y=6
Thank you
Click here to see answer by god2012(113)

Question 722633: What is the solution to the equation: 2x/3+x/6=5?
Click here to see answer by MathLover1(20849)

Question 722730: I keep missing something? I don't know the rules of how to do this problem? My answers keep on being wrong with the negative/positive signs or relating to adding or subtracting? Question: Write an equation of the line containing the given point and perpendicular to the given line. (0,9); 2x + 9y = 8 Would like to see it step by step?
Click here to see answer by lwsshak3(11628)

Question 722634: 3/4x+8=1/4x
Click here to see answer by mananth(16946)

Question 722896: Find the equation of the line passing through the point (-1,-4) that is parallel to the line -9+5y=6
So far I have 5y=-9+6 but I am not sure because there is no x.
Click here to see answer by Alan3354(69443)

Question 722879: -5x+8+2x=-(4-x)
Click here to see answer by 119078(26)

Question 722945: Given the root 5+2i find all roots of the equation x^3-7x^2-x+87=0
This is my first time on this site asking a question. This was not in my book nor did my instructor go over this. It was on a study guide and I have no clue. please help if you can.
Click here to see answer by Edwin McCravy(20055)

Question 720386: Please solve by substitution or elimination.
-3x-3y=-15
8x+6y=24
Click here to see answer by Matthewcus11(2)

Question 723065: please show me how to do this equation step by step then how to check the answer.
-5x-15
Click here to see answer by lenny460(1073)

Question 723175: what two numbers multiply to get -24 but also add up to -5
Click here to see answer by solver91311(24713)

Question 723202: solve 5^x=2

Click here to see answer by stanbon(75887)

Question 723215: seven less than 12 times a number is 101. What is the number
Click here to see answer by MathLover1(20849)

Question 723284: how do you get the answer to this (2x-4) (-3x^3+2x-5)
Click here to see answer by jim_thompson5910(35256)

Question 723289: Please help solve this problem.I come up with x= 4 and y= -1...Not too sure what to do after that or if that is the right answer.
Solve using multiplication principle first and then add:
3x-4y=16
5x+6y=14
Click here to see answer by josmiceli(19441)

Question 723258: The Johnson Performing Arts center has increased in size. The area of the new building is 42% larger than the area of the original building. If the area of the new building is 56,000 square feet, determine the area of the original building
Click here to see answer by checkley79(3341)

Question 723340: assume a vachile's engine is producing 300 ft.-lb. of torque at 4000 rpm. If the vechile's four-speed manual transmission is in third gear (with ratio 1.5:1),then:
(a) The transmission output shaft speed is about ____rpm.
(b) The transmission output shaft torque is about ___ ft.-lb.
Click here to see answer by Alan3354(69443)

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, 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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, 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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, 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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