15-x=7x-9

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Solution for 15-x=7x-9 equation: 



15-x=7x-9

We move all terms to the left:

15-x-(7x-9)=0

We add all the numbers together, and all the variables

-1x-(7x-9)+15=0

We get rid of parentheses

-1x-7x+9+15=0

We add all the numbers together, and all the variables

-8x+24=0

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

-8x=-24

x=-24/-8

x=+3

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