System of equations, solve by substitution? 3x + 2y = -10 and 5x - y = -8??

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1 Answer

line 1: 3x+2y=-10

line 2: 5x-y=-8   or y=5x+8

line 1: 3x +2*(5x+8)=-10

3x+10x+16=-10

13x=-26

x=-2

y=5x+8=5*(-2)+8

y=-2   (=x)
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