-x+15=7+3x+15

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Solution for -x+15=7+3x+15 equation: 



-x+15=7+3x+15

We move all terms to the left:

-x+15-(7+3x+15)=0

We add all the numbers together, and all the variables

-x-(3x+22)+15=0

We add all the numbers together, and all the variables

-1x-(3x+22)+15=0

We get rid of parentheses

-1x-3x-22+15=0

We add all the numbers together, and all the variables

-4x-7=0

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

-4x=7

x=7/-4

x=-1+3/4

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