3x+6x+9x+18=18+17+5-3x

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Solution for 3x+6x+9x+18=18+17+5-3x equation: 



3x+6x+9x+18=18+17+5-3x

We move all terms to the left:

3x+6x+9x+18-(18+17+5-3x)=0

We add all the numbers together, and all the variables

3x+6x+9x-(-3x+40)+18=0

We add all the numbers together, and all the variables

18x-(-3x+40)+18=0

We get rid of parentheses

18x+3x-40+18=0

We add all the numbers together, and all the variables

21x-22=0

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

21x=22

x=22/21

x=1+1/21

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