12-4a=2

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Solution for 12-4a=2 equation: 


Simplifying
12 + -4a = 2

Solving
12 + -4a = 2

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 + -4a = 2 + -12

Combine like terms: 12 + -12 = 0
0 + -4a = 2 + -12
-4a = 2 + -12

Combine like terms: 2 + -12 = -10
-4a = -10

Divide each side by '-4'.
a = 2.5

Simplifying
a = 2.5

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