2(9x+42)=21x+18

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Solution for 2(9x+42)=21x+18 equation: 



2(9x+42)=21x+18

We move all terms to the left:

2(9x+42)-(21x+18)=0

We multiply parentheses

18x-(21x+18)+84=0

We get rid of parentheses

18x-21x-18+84=0

We add all the numbers together, and all the variables

-3x+66=0

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

-3x=-66

x=-66/-3

x=+22

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