-7a-8=-64

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Solution for -7a-8=-64 equation: 


Simplifying
-7a + -8 = -64

Reorder the terms:
-8 + -7a = -64

Solving
-8 + -7a = -64

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 + -7a = -64 + 8

Combine like terms: -8 + 8 = 0
0 + -7a = -64 + 8
-7a = -64 + 8

Combine like terms: -64 + 8 = -56
-7a = -56

Divide each side by '-7'.
a = 8

Simplifying
a = 8

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