-9a-4a=78

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Solution for -9a-4a=78 equation:


Simplifying
-9a + -4a = 78

Combine like terms: -9a + -4a = -13a
-13a = 78

Solving
-13a = 78

Solving for variable 'a'.

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

Divide each side by '-13'.
a = -6

Simplifying
a = -6

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