-4+a=8

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Solution for -4+a=8 equation: 


Simplifying
-4 + a = 8

Solving
-4 + a = 8

Solving for variable 'a'.

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

Add '4' to each side of the equation.
-4 + 4 + a = 8 + 4

Combine like terms: -4 + 4 = 0
0 + a = 8 + 4
a = 8 + 4

Combine like terms: 8 + 4 = 12
a = 12

Simplifying
a = 12

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