117=3(18+x)

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Solution for 117=3(18+x) equation: 



117=3(18+x)

We move all terms to the left:

117-(3(18+x))=0

We add all the numbers together, and all the variables

-(3(x+18))+117=0



We calculate terms in parentheses: -(3(x+18)), so:

3(x+18)

We multiply parentheses

3x+54

Back to the equation:

-(3x+54)



We get rid of parentheses

-3x-54+117=0

We add all the numbers together, and all the variables

-3x+63=0

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

-3x=-63

x=-63/-3

x=+21

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