12a-5=139

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Solution for 12a-5=139 equation: 


Simplifying
12a + -5 = 139

Reorder the terms:
-5 + 12a = 139

Solving
-5 + 12a = 139

Solving for variable 'a'.

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

Add '5' to each side of the equation.
-5 + 5 + 12a = 139 + 5

Combine like terms: -5 + 5 = 0
0 + 12a = 139 + 5
12a = 139 + 5

Combine like terms: 139 + 5 = 144
12a = 144

Divide each side by '12'.
a = 12

Simplifying
a = 12

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