Answer:
x=3 and y= -1
Explanation:
2x-7y=13
3x+y=8
Isolate y to get your third equation
y=8-3x
Sub third equation into first
2x-7(8-3x)=13
2x-56+21x= 13
23x= 13+56
x= 69/23
x=3
Sub x into third equation to get y value
y=8-3(3)
y= -1
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