Solve the equation.

x+7=-8

X+7=-8

You are trying to get x on its own so you will subtract 7 from both sides.

x+7-7=-8-7

This simplifies to x = - 8-7

A negative plus a negative equals a negative. So - 8-7 equals - 15

Your final answer is x=-15

Solution

1) Subtract 7 from each side

x=-8-7

2) Simplify - 8-7 to - 15

x=-15