12=-6-3a

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Solution for 12=-6-3a equation:


Simplifying
12 = -6 + -3a

Solving
12 = -6 + -3a

Solving for variable 'a'.

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

Add '3a' to each side of the equation.
12 + 3a = -6 + -3a + 3a

Combine like terms: -3a + 3a = 0
12 + 3a = -6 + 0
12 + 3a = -6

Add '-12' to each side of the equation.
12 + -12 + 3a = -6 + -12

Combine like terms: 12 + -12 = 0
0 + 3a = -6 + -12
3a = -6 + -12

Combine like terms: -6 + -12 = -18
3a = -18

Divide each side by '3'.
a = -6

Simplifying
a = -6

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