Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 349546: How would you solve 51=m-40?
Click here to see answer by butterbean0315(7)

Question 635845: solve the equations by finding the exact solution. (a) 1/3x -1 = 1
x =
(b) 1/3log(x) - log (10) =1
x =
Note for problem a the entire 1/3 is x
Click here to see answer by butterbean0315(7)

Question 636549: would someone please show me how to do this problem
solve by factoring check each answer please do problem and show me how to do each problem. I have about six problems like this I need to know how to solve and check . If someone shows me I then can do the rest of the problems by using this as an example
a^2+12a+35=0
Click here to see answer by ewatrrr(24785)

Question 636432: -solve using long division
(x^3-64)divided by (x-4)
please show me how to do this problem and then a check
Click here to see answer by sachi(548)

Question 636552: solve by factoring check each answer
2x^2+3x=2
2x^2+3x-2=0
(2x-1)(x+2)=0
x=1/2
x=-2 this is how I did the problem but how do I SHOW TWO CHECKS
Click here to see answer by ankor@dixie-net.com(22740)

Question 636551: solve by factoring and please check each answer
10x^2=100x
Click here to see answer by Alan3354(69443)

Question 636487: I'm selling toasters for $15 ea and it costs $55 to make them with a $4 labor cost. How many do I need to sell to break even? I know the formula for break-even point is: Break-even = fixed costs / selling price - variable costs
this is my equation: $0 = $55 / $15 - 4x Please help me solve so I can know how many I have to sell to break-even? PLEASE?? I am stumped!! Is my answer 30, 33 (rounded from 32.5)
Click here to see answer by ankor@dixie-net.com(22740)

Question 636577: use long division and check (x^3-64)divided by(x-4)
Click here to see answer by ewatrrr(24785)

Question 636599: If i have a promblem like -7p+5(-6p-2) would i combine the ps and how would i do that?
Click here to see answer by Alan3354(69443)

Question 636508: If I am building a feature in the garden 4metresx 4 metres, to get it square what is the measurement across the diagonal. We worked it out to 5.6565 but it looks wrong.
Click here to see answer by ankor@dixie-net.com(22740)

Question 636612: (x+3)^2 over x^2 times (4y^2)over (4x+12)

Simplify and show factoring and cancelling.
Click here to see answer by Tatiana_Stebko(1539)

Question 636607: I would like someone to show me how to solve this equation,(3/x+3)-(1/x-2)=(5/2x+6)
Thank you
Click here to see answer by lwsshak3(11628)

Question 636608: How is a rational expression different from a simple fraction?
Click here to see answer by MathLover1(20849)

Question 636580: long division and check (-30+6y^3-28y+y^2)divided by (2y-5)
Click here to see answer by lwsshak3(11628)

Question 636627: Find the prime factorization of three common multiples of 7560 and 18000.

Click here to see answer by stanbon(75887)

Question 636664: how to solve 3(4-y)=5(y+2)
Click here to see answer by MathLover1(20849)

Question 636756: x^2+(x+2)^2=(x+4)^2
x^2+x^2+4x+4=x^2+8x+16
x^2-4x-12=0
x^2-6x+2x-12=0
x(x-6)+2(x-6)=0
(x-6)(x=2)=o
x=6 I solved this problem and I have tried so hard to check, but I just dont know how to check this please help me
Click here to see answer by ewatrrr(24785)

Question 360016: Hi, I'm studying for a test and having trouble solving the below problem:
2x^2 + 3x < 9
I'm assuming/hoping this is a completing the square problem?
x^2 + 3/2x < 9/2
x^2 + 3/2x + 9/4 < 27/4
This is where my head starts to spin lol. I'm supposed to find the square of the quadratic on the left...there has got to be an easier way to do this! If not, then I'm really not sure how I would go about factoring that equation, so any guidance you can provide is greatly appreciated!
Click here to see answer by tam144(6)

Question 636951: 7a+5=26
Click here to see answer by jim_thompson5910(35256)

Question 636904: A=bh for the area of a parallelogram to solve for the missing variable.
A = ?, b = 6ft, h = 3ft
Click here to see answer by checkley79(3341)

Question 637122: What word phrase an you use to represent the algebraic expression 4x

Click here to see answer by jim_thompson5910(35256)

Question 637122: What word phrase an you use to represent the algebraic expression 4x

Click here to see answer by solver91311(24713)

Question 637153: 9(z�3)=12z
Click here to see answer by stanbon(75887)

Question 637218: How old am if 500 reduced by 3 times my age is 257?
Click here to see answer by ankor@dixie-net.com(22740)

Question 637363: I'm having trouble figuring out how to finish this problem and finding the right steps to do it.
The problem is:
y + 3
______ + t2 (squared)

t
I'm pretty sure that I multiply the bottom t on both sides but from that point on I'm lost. Please help?
Click here to see answer by MathLover1(20849)

Question 637309: resoudre dans R : 14/x-3>7
Click here to see answer by lynnlo(4176)

Question 637429: simplify for x
Click here to see answer by puchicachele(1)

Question 637493: X OVER 3 MINUS 4 EQUALS X PLUS 2 OVER 8
i NEED HELP ON WHERE TO START PLEASE

Click here to see answer by solver91311(24713)

Question 637493: X OVER 3 MINUS 4 EQUALS X PLUS 2 OVER 8
i NEED HELP ON WHERE TO START PLEASE

Click here to see answer by MathLover1(20849)

Question 637613: -2(5-2x)=6
Click here to see answer by meetkisai(17)

Question 637683: solve the limit
((4/x+1)-4)/x
Click here to see answer by ewatrrr(24785)

Question 637703: find the number of real number solutions for the equation
x^2-13x+42=0
Click here to see answer by nerdybill(7384)

Question 637736: I need some help on the problems with letters
3(2a-4)+4-7a
i just forgot how to do them could you show me example steps to complete these types thanks!
Click here to see answer by rfer(16322)

Question 637737: A football team gained 6 yards on a play. It them lost 10 yards on the next play. What was the total change of yardage for the team?

Click here to see answer by solver91311(24713)

Question 637775: Two airplanes leave the airport at the same time and fly in the same direction at the same altitude. One plane travels at a rate of 450 miles per hour and the other at 350 miles per hour. In how many hours will they be 200 miles apart?
Click here to see answer by solver91311(24713)

Question 637774: At 8 a.m. an airplane left an airport and flew in a northerly direction at an average speed of 200 miles per hour. At 10 a.m. a jet plane which can average 600 miles per hour was sent out to overtake the first plane. At what time were both of the planes the same distance from the airport?
Click here to see answer by lwsshak3(11628)

Question 637723: how do you solve 1/(3x)=3^(2+x)?
Click here to see answer by Alan3354(69443)

Question 637765: -5-(15y-1)=2(7y-16)-y
Click here to see answer by rfer(16322)

Question 637823: (7x)(14)-3x+7(-9x+1) = -25 please help me with this and give me step by step instructions?? Please!!!
Click here to see answer by MathLover1(20849)

Question 637852: Solve the equation for y. Then find the value of y.
3xy-4x=19 ; x=2
Click here to see answer by MathLover1(20849)

Question 637867: 7x^2-3x-5=0
Click here to see answer by reviewermath(1029)

Question 637894: 8n-4n-5=27
Click here to see answer by MathLover1(20849)

Question 637930: what is the lcd of x2-4 and x2+5x+6?

Click here to see answer by MathLover1(20849)

Question 637959: Half the sum of two numbers is 20 and three times their difference is 18. Find the numbers
Click here to see answer by Maths68(1474)

Question 638056: 5(x-4)-1=-7x+3 what does x equal?
Click here to see answer by solver91311(24713)

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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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, 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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