8a-7-9a=

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Solution for 8a-7-9a= equation: 


Simplifying
8a + -7 + -9a = 0

Reorder the terms:
-7 + 8a + -9a = 0

Combine like terms: 8a + -9a = -1a
-7 + -1a = 0

Solving
-7 + -1a = 0

Solving for variable 'a'.

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

Add '7' to each side of the equation.
-7 + 7 + -1a = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1a = 0 + 7
-1a = 0 + 7

Combine like terms: 0 + 7 = 7
-1a = 7

Divide each side by '-1'.
a = -7

Simplifying
a = -7

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