15-x=9+x

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Solution for 15-x=9+x equation: 



15-x=9+x

We move all terms to the left:

15-x-(9+x)=0

We add all the numbers together, and all the variables

-x-(x+9)+15=0

We add all the numbers together, and all the variables

-1x-(x+9)+15=0

We get rid of parentheses

-1x-x-9+15=0

We add all the numbers together, and all the variables

-2x+6=0

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

-2x=-6

x=-6/-2

x=+3

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