-39=-18x-21

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Solution for -39=-18x-21 equation: 



-39=-18x-21

We move all terms to the left:

-39-(-18x-21)=0

We get rid of parentheses

18x+21-39=0

We add all the numbers together, and all the variables

18x-18=0

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

18x=18

x=18/18

x=1

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