SOLUTION: How to solve this linear system shown by using an elimination strategy: 5x - 4y= -3 2x + 7y= 5 I tries my best, please correct it if i did anything wrong: (5x

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Question 962793: How to solve this linear system shown by using an elimination strategy:
5x - 4y= -3
2x + 7y= 5

I tries my best, please correct it if i did anything wrong:
(5x - 4y= -3) * 2
(2x + 7y= 5) * 5
= 10 - 8y= -6
=10x + 35y= 25
= -43y = -31
y= -31/43
y=0.7

5x - 4y= -3
5x - 4 (0.7)= -3
5x - 2.8= -3
5x=-0.2
x = -0.04

But when I try to verify , it wrong. help please?

Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website!

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.....both sides multiply by
.....both sides multiply by
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.....exact solution
......approximate solution

now, use exact solution of to find

.....exact solution
......approximate solution

SOLUTION: How to solve this linear system shown by using an elimination strategy: 5x - 4y= -3 2x + 7y= 5 I tries my best, please correct it if i did anything wrong: (5x - 4y= -3)