9(9-a)+15=33

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Solution for 9(9-a)+15=33 equation: 



9(9-a)+15=33

We move all terms to the left:

9(9-a)+15-(33)=0

We add all the numbers together, and all the variables

9(-1a+9)+15-33=0

We add all the numbers together, and all the variables

9(-1a+9)-18=0

We multiply parentheses

-9a+81-18=0

We add all the numbers together, and all the variables

-9a+63=0

We move all terms containing a to the left, all other terms to the right

-9a=-63

a=-63/-9

a=+7

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