a-12=4

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Solution for a-12=4 equation: 


Simplifying
a + -12 = 4

Reorder the terms:
-12 + a = 4

Solving
-12 + a = 4

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 + a = 4 + 12

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

Combine like terms: 4 + 12 = 16
a = 16

Simplifying
a = 16

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