12x=571-21+7x

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Solution for 12x=571-21+7x equation: 



12x=571-21+7x

We move all terms to the left:

12x-(571-21+7x)=0

We add all the numbers together, and all the variables

12x-(7x+550)=0

We get rid of parentheses

12x-7x-550=0

We add all the numbers together, and all the variables

5x-550=0

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

5x=550

x=550/5

x=110

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