I am trying to solve this problem by elimination. I have one part correct but am having problem with the second part.
The problem is 5x+5y=-13 7x=3y=17

Question

I am trying to solve this problem by elimination.   I have one part correct but am having problem with the second part.
The problem is 5x+5y=-13     7x=3y=17

anonymous · Answer

Is the second line 7x - 3y = 17?  Multiply the first equation by 7/5 to get:

7x + 7y = -91/5
7x - 3y = 17

Eliminate by subtracting equation 2 from equation 1

7x + 7y = -91/5
0 + 10y = -176/5

y = -176/50 = -3.52

Put y into original equation and solve for x.

7x - 3(-3.52) = 17
x = 23/25 = .92