15-x=18-2x

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Solution for 15-x=18-2x equation: 



15-x=18-2x

We move all terms to the left:

15-x-(18-2x)=0

We add all the numbers together, and all the variables

-x-(-2x+18)+15=0

We add all the numbers together, and all the variables

-1x-(-2x+18)+15=0

We get rid of parentheses

-1x+2x-18+15=0

We add all the numbers together, and all the variables

x-3=0

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

x=3

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