-2x-21=24-4x

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Solution for -2x-21=24-4x equation: 



-2x-21=24-4x

We move all terms to the left:

-2x-21-(24-4x)=0

We add all the numbers together, and all the variables

-2x-(-4x+24)-21=0

We get rid of parentheses

-2x+4x-24-21=0

We add all the numbers together, and all the variables

2x-45=0

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

2x=45

x=45/2

x=22+1/2

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