-9+9a-9a+(-18)=9

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Solution for -9+9a-9a+(-18)=9 equation: 


Simplifying
-9 + 9a + -9a + (-18) = 9
-9 + 9a + -9a + -18 = 9

Reorder the terms:
-9 + -18 + 9a + -9a = 9

Combine like terms: -9 + -18 = -27
-27 + 9a + -9a = 9

Combine like terms: 9a + -9a = 0
-27 + 0 = 9
-27 = 9

Solving
-27 = 9

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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