-2x+y=0;
5x+3y=-11
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Solve the first equation -2x+y=0
Add 2x to each side
-2x+y+2x=0+2x
y=2x
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Now substitute 2x for y in 5x+3y=-11
5x+(3)(2x)=-11
11x=-11
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Divide each side by 11
11x / 11 = -11 / 11
x = -1
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To find Y Substitute -1 for the x in y = 2x
y=(2)(-1)
y = -2
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X = -1 and Y = -2
