Question 77943
-7x + y = 4
2x + 8y = 0

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Solve the 1st equation for Y;
y=7x+4
Substitute that into the 2nd equation to solve for x:
2x+8(7x+4)=0
2x+56x+32=0
58x = -32
x=-16/29
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Substitute that in y=7x+4 to solve for y:
7(-16/29)+4=-112/29 + 116/29 = 4/29
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Solution:
x=-16/29 ; y=4/29
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Cheers,
Stan H.