21+3=6x-21

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Solution for 21+3=6x-21 equation: 



21+3=6x-21

We move all terms to the left:

21+3-(6x-21)=0

We add all the numbers together, and all the variables

-(6x-21)+24=0

We get rid of parentheses

-6x+21+24=0

We add all the numbers together, and all the variables

-6x+45=0

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

-6x=-45

x=-45/-6

x=7+1/2

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