Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 996521: 2a+9=a+5 how do I solve this equation
Click here to see answer by Timnewman(323)

Question 996521: 2a+9=a+5 how do I solve this equation
Click here to see answer by MathTherapy(10552)

Question 996507: what is 3/5+3=13
Click here to see answer by Alan3354(69443)

Question 996529: Help out in solving : 4m^2 plus 10m-5=0 by completing the square method
Click here to see answer by josgarithmetic(39617)

Question 996583: I was wondering how to solve this problem 9k2+66k+21 do you can help me thanks
Click here to see answer by Alan3354(69443)

Question 996739: Four students took an exam. The fraction of the total possible points that each received is given. Monica 22/25, Lily 17/20, Nikki 4/5, Sydney 3/4.
If students receive a whole number of points on every exam item, can the exam be worth a total of 80 points? Explain.
Click here to see answer by stanbon(75887)

Question 996767: jesse was asked to solve an algebra problem. she submitted the following solution
4(x+3)=1
4x+3=1
4x=-2
x=-2
1. is jesses solution correct?
2. if it is correct, justify each step of her solution
3. if it is incorrect, correct her solution, and explain to jesse what she did wrong.
Click here to see answer by Alan3354(69443)

Question 996830: A washer and a dryer cost
$782
combined. The washer costs
$68
less than the dryer. What is the cost of the dryer?
Click here to see answer by addingup(3677)

Question 996830: A washer and a dryer cost
$782
combined. The washer costs
$68
less than the dryer. What is the cost of the dryer?
Click here to see answer by Alan3354(69443)

Question 996831: Evaluate the expression of 8x- 20 if x=10
Click here to see answer by addingup(3677)

Question 996858: The difference when 2 less than a number is subtracted from twice the number is 8. What is the number?
Click here to see answer by rfer(16322)

Question 996867: Hello,
trying to understand how to solve this 5(2+x)=40
Thank you
Click here to see answer by ikleyn(52781)

Question 996890: The area of a circular pond is 225 pie square meters. Bordering the pond is a paved circular path whose area is 175 pie square meters. How wide is the paved path alone, in meters?
Click here to see answer by josgarithmetic(39617)

Question 997012: If 2x=6,then X^2 + X^3=
Click here to see answer by josgarithmetic(39617)

Question 997122: Please Help again!:
x=2 to the power of p.
Y= 2 to the power of q.
Express in terms x and or/y,
(i) 2 to the power of p+q
(ii) two to the power of 2q
(iii) 2 to the power of p-1.
This should count as 1 question as its three parts! Thank you very much kind tutors, and have fantastic days!

Click here to see answer by ikleyn(52781)

Question 997146: Hi,
Math problems I have no idea how to figure out and understand.I am not sure they are equation category. Please help
x-4/11=3/5
Divide & simplify-32/45+48/35
Simlify-6x*2-2y*2-5(3y*2+2x*2)
3(2x-1)=27-2
Clear fraction--3/2x1=2/5x4
Thank you so much, Betty
Click here to see answer by Boreal(15235)

Question 997163: five times a number, subtracted from 6, is triple the number
Click here to see answer by ikleyn(52781)

Question 997141: The cost of printing 200 business cards is $23. the cost of printing 500 business cards at the same business is $35. Write and solve a linear equation to find the cost of printing 700 business cards.
Click here to see answer by josgarithmetic(39617)

Question 997359: What is 2x+4y=+1 linear function
Click here to see answer by Alan3354(69443)

Question 997501: Consider the line
2x-5y= −1
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?
Click here to see answer by Theo(13342)

Question 997555: As part of an exercise how would one get the reverse (antiderivative) of and the reverse of
The last one I was just curious about.
My problem states to determine the functions with these conditions.
f'(x) = e^(x/9)
f(0)=19
f(x)=Ae^(bx)+c
My teacher said we cannot use integrals to solve. I am unsure what this question is asking me to do exactly.
Please help
Thank you
Click here to see answer by Alan3354(69443)

Question 997599: A bank contains 36 nickels, dimes, and quarters. There are 4 more dimes than quarters and twice as many nickels as quarters. How many of each coin are in the bank? ***please write the equation to this and solve for how many coins***
Click here to see answer by josmiceli(19441)

Question 997602: The lengths of the sides of a triangle are consecutive odd integers.
if the perimeter is one less than four times the shortest side. find the length of each side
***please write the equation used to solve this**
Click here to see answer by addingup(3677)

Question 997675: 10/(x^2-25) - 1/(x-5) = 1
Click here to see answer by josgarithmetic(39617)

Question 997675: 10/(x^2-25) - 1/(x-5) = 1
Click here to see answer by MathTherapy(10552)

Question 997832: Traslate equation into an equation
The quotient of a number and three less five is equal to two

Click here to see answer by fractalier(6550)

Question 997847: Five times a number decreased by 18 minus 4 times the same number is negative 36 what is tge number?
Click here to see answer by addingup(3677)

Question 997804: Find the slope-intercept form for the line satisfying the following condition.
x intercepts 3, y intercepts 3/5
Click here to see answer by fractalier(6550)

Question 997870: One number is 5 less than three-fourths the other number. Their Sum is 79. Find the two numbers
Click here to see answer by fractalier(6550)

Question 998004: One day a store sold 30 sweatshirts. White ones cost $11.95 and yellow ones cost $13.50. In all, $383.30 worth of sweatshirts were sold. How many of each color were sold?
Click here to see answer by josgarithmetic(39617)

Question 998086: Solve the equation: 6x^2+3= 11x, by any method.
Click here to see answer by addingup(3677)

Question 998139: Write an equation given the following phrase:
Three more than the quotient of a number and two.
Click here to see answer by fractalier(6550)

Question 998181: -9(v-1)=-2v-40
Click here to see answer by solver91311(24713)

Question 998193: what is 6(-5/9)

Click here to see answer by addingup(3677)

Question 998252: -10 - 3/7x = 5
Click here to see answer by ikleyn(52781)

Question 998409: What is 5+(-4)+12.65 simplified
Thank you
Click here to see answer by Alan3354(69443)

Question 998415: 10p(2p+5)=
Click here to see answer by fractalier(6550)

Question 998428: Tameen keeps quarters, nickels, and dimes in his change jar. He has three more quarters than dimes and five fewer nickels than dimes. If there are 52 coins in the change jar, how many dimes are in the jar?
Click here to see answer by stanbon(75887)

Question 998495: How did ((x+3)^2) / x^2 be the answer to 1+ (6/x) + (9/x^2) ?
Click here to see answer by ikleyn(52781)

Question 998501: How did x+2 be the answer to ((x)+(2x/(x-2))) divided by ((1)+ (4/(x^2-4))) ?
and
How did 3/8 be the answer to 3^(n+2) + (3^(n+3) - 3^(n+1)) ?

Sorry I'm still confused. Thank you!
Click here to see answer by josgarithmetic(39617)

Question 998509: Please help me solve this question x^2/2 + 2x
Click here to see answer by josgarithmetic(39617)

Question 998386: A mother's age is now 3 times that of her son. 8 years ago, the mother's age was greater than 4 times that of her son by 4. Find the son's present age.
Click here to see answer by ankor@dixie-net.com(22740)

Question 998510: Please help me with this (X^2+5x)/3
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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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, 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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