6a-3a=-12

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Solution for 6a-3a=-12 equation: 


Simplifying
6a + -3a = -12

Combine like terms: 6a + -3a = 3a
3a = -12

Solving
3a = -12

Solving for variable 'a'.

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

Divide each side by '3'.
a = -4

Simplifying
a = -4

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