a-5-3=12

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Solution for a-5-3=12 equation: 


Simplifying
a + -5 + -3 = 12

Reorder the terms:
-5 + -3 + a = 12

Combine like terms: -5 + -3 = -8
-8 + a = 12

Solving
-8 + a = 12

Solving for variable 'a'.

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

Add '8' to each side of the equation.
-8 + 8 + a = 12 + 8

Combine like terms: -8 + 8 = 0
0 + a = 12 + 8
a = 12 + 8

Combine like terms: 12 + 8 = 20
a = 20

Simplifying
a = 20

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