Answer:
Explanation:
To find the solution to the equation x+7=-8, we need to isolate the variable x.
First, we can subtract 7 from both sides of the equation to get:
x + 7 - 7 = -8 - 7
This simplifies to:
x = -15
So the solution to the equation x+7=-8 is x = -15.
Therefore, the correct answer is B. x = -15.