-21=2x-5

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Solution for -21=2x-5 equation: 



-21=2x-5

We move all terms to the left:

-21-(2x-5)=0

We get rid of parentheses

-2x+5-21=0

We add all the numbers together, and all the variables

-2x-16=0

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

-2x=16

x=16/-2

x=-8

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