9a-2+7-a=

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Solution for 9a-2+7-a= equation:


Simplifying
9a + -2 + 7 + -1a = 0

Reorder the terms:
-2 + 7 + 9a + -1a = 0

Combine like terms: -2 + 7 = 5
5 + 9a + -1a = 0

Combine like terms: 9a + -1a = 8a
5 + 8a = 0

Solving
5 + 8a = 0

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 + 8a = 0 + -5

Combine like terms: 5 + -5 = 0
0 + 8a = 0 + -5
8a = 0 + -5

Combine like terms: 0 + -5 = -5
8a = -5

Divide each side by '8'.
a = -0.625

Simplifying
a = -0.625

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