-12=a-18

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Solution for -12=a-18 equation:


Simplifying
-12 = a + -18

Reorder the terms:
-12 = -18 + a

Solving
-12 = -18 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-12 + -1a = -18 + a + -1a

Combine like terms: a + -1a = 0
-12 + -1a = -18 + 0
-12 + -1a = -18

Add '12' to each side of the equation.
-12 + 12 + -1a = -18 + 12

Combine like terms: -12 + 12 = 0
0 + -1a = -18 + 12
-1a = -18 + 12

Combine like terms: -18 + 12 = -6
-1a = -6

Divide each side by '-1'.
a = 6

Simplifying
a = 6

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