15=9+x-2

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Solution for 15=9+x-2 equation: 



15=9+x-2

We move all terms to the left:

15-(9+x-2)=0

We add all the numbers together, and all the variables

-(x+7)+15=0

We get rid of parentheses

-x-7+15=0

We add all the numbers together, and all the variables

-1x+8=0

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

-x=-8

x=-8/-1

x=+8

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