21=-17-5x

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Solution for 21=-17-5x equation: 



21=-17-5x

We move all terms to the left:

21-(-17-5x)=0

We add all the numbers together, and all the variables

-(-5x-17)+21=0

We get rid of parentheses

5x+17+21=0

We add all the numbers together, and all the variables

5x+38=0

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

5x=-38

x=-38/5

x=-7+3/5

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