a+8=-7

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Solution for a+8=-7 equation: 


Simplifying
a + 8 = -7

Reorder the terms:
8 + a = -7

Solving
8 + a = -7

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-8' to each side of the equation.
8 + -8 + a = -7 + -8

Combine like terms: 8 + -8 = 0
0 + a = -7 + -8
a = -7 + -8

Combine like terms: -7 + -8 = -15
a = -15

Simplifying
a = -15

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