-7x+1=21-8x

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Solution for -7x+1=21-8x equation: 



-7x+1=21-8x

We move all terms to the left:

-7x+1-(21-8x)=0

We add all the numbers together, and all the variables

-7x-(-8x+21)+1=0

We get rid of parentheses

-7x+8x-21+1=0

We add all the numbers together, and all the variables

x-20=0

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

x=20

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