18=3(x+2x)-5x

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Solution for 18=3(x+2x)-5x equation: 



18=3(x+2x)-5x

We move all terms to the left:

18-(3(x+2x)-5x)=0

We add all the numbers together, and all the variables

-(3(+3x)-5x)+18=0



We calculate terms in parentheses: -(3(+3x)-5x), so:

3(+3x)-5x

We add all the numbers together, and all the variables

-5x+3(+3x)

We multiply parentheses

-5x+9x

We add all the numbers together, and all the variables

4x

Back to the equation:

-(4x)



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

-4x=-18

x=-18/-4

x=4+1/2

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