SOLUTION: E-mail- pretygurl721@yahoo.com. Hi im having touble with these kinds of questions and i have a test that i really need to pass to

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: E-mail- pretygurl721@yahoo.com. Hi im having touble with these kinds of questions and i have a test that i really need to pass to      Log On


   

Question 228293: E-mail- pretygurl721@yahoo.com. Hi im having touble with these kinds of questions and i have a test that i really need to pass tomorrow can you please help me. Thank you. Problem is : 5x-3+2x=3+x-12 , 5y+8+3y+5=6y-3, and -6/5x=-18
Found 2 solutions by jim_thompson5910, Alan3354:
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
I'll do the first two to get you started.

# 1



5x-3%2B2x=3%2Bx-12 Start with the given equation.


7x-3=3%2Bx-12 Combine like terms on the left side.


7x-3=x-9 Combine like terms on the right side.


7x=x-9%2B3 Add 3 to both sides.


7x-x=-9%2B3 Subtract x from both sides.


6x=-9%2B3 Combine like terms on the left side.


6x=-6 Combine like terms on the right side.


x=%28-6%29%2F%286%29 Divide both sides by 6 to isolate x.


x=-1 Reduce.


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Answer:

So the solution is x=-1




# 2



5y%2B8%2B3y%2B5=6y-3 Start with the given equation.


8y%2B13=6y-3 Combine like terms on the left side.


8y=6y-3-13 Subtract 13 from both sides.


8y-6y=-3-13 Subtract 6y from both sides.


2y=-3-13 Combine like terms on the left side.


2y=-16 Combine like terms on the right side.


y=%28-16%29%2F%282%29 Divide both sides by 2 to isolate y.


y=-8 Reduce.


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Answer:

So the solution is y=-8

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
5x-3+2x=3+x-12
Get all the x's and all the numbers together
7x-3 = x-9
Subtract x from both sides
6x-3 = -9
Add 3
6x = -6
x = -1
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5y+8+3y+5=6y-3
8y+13 = 6y-3
Subtract 6y
2y+13 = -3
Subtract 13
2y = -16
y = -8
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-6/5x=-18
Multiply both side by 5x
-6 = -18*5x
-6 = -90x
x = 1/15