4a+8-12=80

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Solution for 4a+8-12=80 equation: 


Simplifying
4a + 8 + -12 = 80

Reorder the terms:
8 + -12 + 4a = 80

Combine like terms: 8 + -12 = -4
-4 + 4a = 80

Solving
-4 + 4a = 80

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 + 4a = 80 + 4

Combine like terms: -4 + 4 = 0
0 + 4a = 80 + 4
4a = 80 + 4

Combine like terms: 80 + 4 = 84
4a = 84

Divide each side by '4'.
a = 21

Simplifying
a = 21

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