21+2x=3x-24

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Solution for 21+2x=3x-24 equation: 



21+2x=3x-24

We move all terms to the left:

21+2x-(3x-24)=0

We get rid of parentheses

2x-3x+24+21=0

We add all the numbers together, and all the variables

-1x+45=0

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

-x=-45

x=-45/-1

x=+45

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