12-a+3+4a=

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Solution for 12-a+3+4a= equation:


Simplifying
12 + -1a + 3 + 4a = 0

Reorder the terms:
12 + 3 + -1a + 4a = 0

Combine like terms: 12 + 3 = 15
15 + -1a + 4a = 0

Combine like terms: -1a + 4a = 3a
15 + 3a = 0

Solving
15 + 3a = 0

Solving for variable 'a'.

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

Add '-15' to each side of the equation.
15 + -15 + 3a = 0 + -15

Combine like terms: 15 + -15 = 0
0 + 3a = 0 + -15
3a = 0 + -15

Combine like terms: 0 + -15 = -15
3a = -15

Divide each side by '3'.
a = -5

Simplifying
a = -5

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