12-12a=28

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Solution for 12-12a=28 equation: 


Simplifying
12 + -12a = 28

Solving
12 + -12a = 28

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + -12a = 28 + -12

Combine like terms: 12 + -12 = 0
0 + -12a = 28 + -12
-12a = 28 + -12

Combine like terms: 28 + -12 = 16
-12a = 16

Divide each side by '-12'.
a = -1.333333333

Simplifying
a = -1.333333333

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