-7+a+2=12

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Solution for -7+a+2=12 equation: 


Simplifying
-7 + a + 2 = 12

Reorder the terms:
-7 + 2 + a = 12

Combine like terms: -7 + 2 = -5
-5 + a = 12

Solving
-5 + a = 12

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 + a = 12 + 5

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

Combine like terms: 12 + 5 = 17
a = 17

Simplifying
a = 17

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