18=x+7+x

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Solution for 18=x+7+x equation: 



18=x+7+x

We move all terms to the left:

18-(x+7+x)=0

We add all the numbers together, and all the variables

-(2x+7)+18=0

We get rid of parentheses

-2x-7+18=0

We add all the numbers together, and all the variables

-2x+11=0

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

-2x=-11

x=-11/-2

x=5+1/2

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