9a+12-a+4=56

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Solution for 9a+12-a+4=56 equation:


Simplifying
9a + 12 + -1a + 4 = 56

Reorder the terms:
12 + 4 + 9a + -1a = 56

Combine like terms: 12 + 4 = 16
16 + 9a + -1a = 56

Combine like terms: 9a + -1a = 8a
16 + 8a = 56

Solving
16 + 8a = 56

Solving for variable 'a'.

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

Add '-16' to each side of the equation.
16 + -16 + 8a = 56 + -16

Combine like terms: 16 + -16 = 0
0 + 8a = 56 + -16
8a = 56 + -16

Combine like terms: 56 + -16 = 40
8a = 40

Divide each side by '8'.
a = 5

Simplifying
a = 5

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