SOLUTION: 5x+y=22 4x-4y=8 solve by substitution

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Question 665824: 5x+y=22
4x-4y=8
solve by substitution
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

5x%2By=22.....1
4x-4y=8......2
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5x%2By=22.....1..solve for y
y=-5x%2B22...plug it in 2

4x-4%28-5x%2B22%29=8......2.solve for x
4x%2B20x-88=8
24x=8%2B88
24x=96
x=96%2F24
highlight%28x=4%29

now find y
y=-5x%2B22
y=-5%2A4%2B22
y=-20%2B22
highlight%28y=2%29