9a+2-7a=

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


Simplifying
9a + 2 + -7a = 0

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

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

Solving
2 + 2a = 0

Solving for variable 'a'.

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

Add '-2' to each side of the equation.
2 + -2 + 2a = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 2a = 0 + -2
2a = 0 + -2

Combine like terms: 0 + -2 = -2
2a = -2

Divide each side by '2'.
a = -1

Simplifying
a = -1

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