-36=3x-21

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Solution for -36=3x-21 equation: 



-36=3x-21

We move all terms to the left:

-36-(3x-21)=0

We get rid of parentheses

-3x+21-36=0

We add all the numbers together, and all the variables

-3x-15=0

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

-3x=15

x=15/-3

x=-5

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