-3a-8=7

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Solution for -3a-8=7 equation: 


Simplifying
-3a + -8 = 7

Reorder the terms:
-8 + -3a = 7

Solving
-8 + -3a = 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 + -3a = 7 + 8

Combine like terms: -8 + 8 = 0
0 + -3a = 7 + 8
-3a = 7 + 8

Combine like terms: 7 + 8 = 15
-3a = 15

Divide each side by '-3'.
a = -5

Simplifying
a = -5

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