-9a-3a=36

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Solution for -9a-3a=36 equation: 


Simplifying
-9a + -3a = 36

Combine like terms: -9a + -3a = -12a
-12a = 36

Solving
-12a = 36

Solving for variable 'a'.

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

Divide each side by '-12'.
a = -3

Simplifying
a = -3

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