12+9a-6a+7a-15a+5a=

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Solution for 12+9a-6a+7a-15a+5a= equation: 


Simplifying
12 + 9a + -6a + 7a + -15a + 5a = 0

Combine like terms: 9a + -6a = 3a
12 + 3a + 7a + -15a + 5a = 0

Combine like terms: 3a + 7a = 10a
12 + 10a + -15a + 5a = 0

Combine like terms: 10a + -15a = -5a
12 + -5a + 5a = 0

Combine like terms: -5a + 5a = 0
12 + 0 = 0
12 = 0

Solving
12 = 0

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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