12-3a=24

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Solution for 12-3a=24 equation: 


Simplifying
12 + -3a = 24

Solving
12 + -3a = 24

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 + -3a = 24 + -12

Combine like terms: 12 + -12 = 0
0 + -3a = 24 + -12
-3a = 24 + -12

Combine like terms: 24 + -12 = 12
-3a = 12

Divide each side by '-3'.
a = -4

Simplifying
a = -4

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