3a+-6a=12

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


Simplifying
3a + -6a = 12

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