-21x-24=30-3x

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Solution for -21x-24=30-3x equation: 



-21x-24=30-3x

We move all terms to the left:

-21x-24-(30-3x)=0

We add all the numbers together, and all the variables

-21x-(-3x+30)-24=0

We get rid of parentheses

-21x+3x-30-24=0

We add all the numbers together, and all the variables

-18x-54=0

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

-18x=54

x=54/-18

x=-3

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