Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

Tutors Answer Your Questions about Expressions-with-variables (FREE)

Question 20836: waths the solution to 4x - 2x=6

Click here to see answer by superkid208(3)

Question 20837: waths the solution to 5x -4x + 3=9 - x
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Question 20835: waths the solution to 3x + 12=8x - 8
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Question 20834: waths the solution to 16 + 3y=22
Click here to see answer by kapilsinghi(68)

Question 20881: Jane bought 2 pairs of shoes. The total cost of both pair was $49.50. One pair cost $5.50 more than the other. How much were both pairs of shoes?
Click here to see answer by Paul(988)

Question 20877: 5+5
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Question 21025: solve for the indicated variable a=lw solve for w.
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Question 21026: please help me solve this equation : (2/9 v) - 6 = 14
Click here to see answer by elima(1433)

Question 21067: Find the hypotenuse of a right triangle with sides 5 inches and 10 inches
Click here to see answer by algebrapro18(206)

Question 21067: Find the hypotenuse of a right triangle with sides 5 inches and 10 inches
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Question 21127: How do u solve the equation: 3p-2(p-4)= 7p+6 ....wat does P equal.....iem very confused with this problem and i dont really understand how 2 do it!
Shelly~
Click here to see answer by jessicawhidden(3)

Question 21134: how would you solve an equation with variables on both sides for example
12-2a=-5a-9
Click here to see answer by wuwei96815(245)

Question 21140: please help me solve this equation, i dont get how to do it
2(2x+3)=6
Click here to see answer by rahman(247)

Question 21171:

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Question 21141: please help me solve this equation, i dont get how to do it
2(2x+3)=6
Click here to see answer by Here2Help(19)

Question 21286: how would i do this ???? 4(x+5)=16
Click here to see answer by elima(1433)

Question 21290: How do u solve this --> 3x+6=2(x-1)
Click here to see answer by elima(1433)

Question 21291: How do u solve this --> 3x+6=2(x-1)
Click here to see answer by Here2Help(19)

Question 21287: how would i do this ???? 4(x-2)=x-14
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Question 21337: what is the answer to:
2(6d+3)=18-3(16-3d) ???

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Question 21397: show by the substitution of suitable numbers that m+n=n+m
Click here to see answer by bonster(299)

Question 21506: -11 y -6=115 my daughter is in the 6th grade and she needs help on this and many more 11-y=14, -2+y=-12 can someone help us both thanx a concern and old school parent
Click here to see answer by askmemath(368)

Question 21616: -(9+m)=16
Click here to see answer by queenofit(120)

Question 21726: a video distributor has 800 copies of a new video to distribute among four stores. she plans to give the first two stores the same number of copies. The third sore will recieve three times as many videos as the first store and the fourth store will receive 20 more videos than the first store.How many copies will each store recieve?
Click here to see answer by smartmathgirl(11)

Question 21736: I have a problem from an old homework that i still can't solve. How do you solve it?
(1/2)x+x/3=6
Also, I was wondering how you would solve and equation with variable on both sides of the equation. Such as this practice problem I found...
(T-2)4=(5T)/12

Could you please explain how to do these problems. Thank you very much.
-Natalie Klotz, 8th grade, Algebra I
Click here to see answer by algebrapro18(206)

Question 21872: 4(2r+1)-3(2r-5)=29
Click here to see answer by Alwayscheerful(414)

Question 21851: solve for p: 7p+3w=12-3p
Click here to see answer by algebrapro18(206)

Question 22015: What number is 33 greater than twice the opposite of itself?
Click here to see answer by wuwei96815(245)

Question 22082: How do I solve a problem such as this:
1) 5(2x-3)+8=9?
Click here to see answer by queenofit(120)

Question 22100: how would i solve y=2x+7
y=5x+4
Click here to see answer by wuwei96815(245)

Question 22098: how would i solve a problem such as...... 5x-3y=-4
Click here to see answer by wuwei96815(245)

Question 22110: 5x+2=12 I just don't get it?
Click here to see answer by Alwayscheerful(414)

Question 22261: What is the answer to 2x-5=3?
Click here to see answer by wuwei96815(245)

Question 22099: how would i solve 7y=-14x+42
7y=14x+14
Click here to see answer by stanbon(57361)

Question 22286: please help me siplifyig
Click here to see answer by Earlsdon(6287)

Question 22389: Hello, can you help with the following formula
Given y=x^(1/(p-1))
Calculate P if y =2.65 and x = 0.745
Many thanks
Click here to see answer by stanbon(57361)

Question 22468: 3x-9=9-3x how do I solve problems with variables on both sides
Click here to see answer by Earlsdon(6287)

Question 22469: 10 + v - 17v = 4
What is V?
Click here to see answer by Alwayscheerful(414)

Question 22461: 5w-3=8(w+3) solve w
Click here to see answer by Alwayscheerful(414)

Question 22404: 8x+5y=6
3x-2y=10
*Here I have to slove each system by using elimination, and check my solution. I just don't understan it. Please help!
Click here to see answer by stanbon(57361)

Question 21597: 10x^2-31x-63
Click here to see answer by Alwayscheerful(414)

Question 22451: which equation is NOT equivalent to x-15=32?
(a) x+5=52
(b) x-20=27
(c) x-13=30
(d) x=47
please explain how you got the answer.. thank you so much!
Click here to see answer by queenofit(120)

Question 22497: I am having a problem setting up this word problem. Can someone please help me structure this word problem.
a man buys 100 birds for $100.00. a rooster is worth$10.00, hens are worth $3.00, and chicks are worth $1.00 a pair. how many roosters, hens, and chicks did he buy if he bought atleast one of each?
He bought 1 rooster, 1 hen and 2 chicks which is 14.00 worth, right? what am I missing?
Click here to see answer by ilana(307)

Question 22481: 4-3y
------ = y how do i solve
5
Click here to see answer by elima(1433)

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