12=-a+4

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Solution for 12=-a+4 equation:


Simplifying
12 = -1a + 4

Reorder the terms:
12 = 4 + -1a

Solving
12 = 4 + -1a

Solving for variable 'a'.

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

Add 'a' to each side of the equation.
12 + a = 4 + -1a + a

Combine like terms: -1a + a = 0
12 + a = 4 + 0
12 + a = 4

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 = -8
a = -8

Simplifying
a = -8

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