Solve for x
x=-\left(y+8\right)
Solve for y
y=-\left(x+8\right)
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x+y+1=-7
Subtract 7 from 0 to get -7.
x+1=-7-y
Subtract y from both sides.
x=-7-y-1
Subtract 1 from both sides.
x=-8-y
Subtract 1 from -7 to get -8.
x+y+1=-7
Subtract 7 from 0 to get -7.
y+1=-7-x
Subtract x from both sides.
y=-7-x-1
Subtract 1 from both sides.
y=-8-x
Subtract 1 from -7 to get -8.
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