12a-18a=-30

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Solution for 12a-18a=-30 equation: 


Simplifying
12a + -18a = -30

Combine like terms: 12a + -18a = -6a
-6a = -30

Solving
-6a = -30

Solving for variable 'a'.

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

Divide each side by '-6'.
a = 5

Simplifying
a = 5

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