-21=5x-1

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Solution for -21=5x-1 equation: 



-21=5x-1

We move all terms to the left:

-21-(5x-1)=0

We get rid of parentheses

-5x+1-21=0

We add all the numbers together, and all the variables

-5x-20=0

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

-5x=20

x=20/-5

x=-4

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