-21=1-10x

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Solution for -21=1-10x equation: 



-21=1-10x

We move all terms to the left:

-21-(1-10x)=0

We add all the numbers together, and all the variables

-(-10x+1)-21=0

We get rid of parentheses

10x-1-21=0

We add all the numbers together, and all the variables

10x-22=0

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

10x=22

x=22/10

x=2+1/5

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