21=-8-29x

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Solution for 21=-8-29x equation: 



21=-8-29x

We move all terms to the left:

21-(-8-29x)=0

We add all the numbers together, and all the variables

-(-29x-8)+21=0

We get rid of parentheses

29x+8+21=0

We add all the numbers together, and all the variables

29x+29=0

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

29x=-29

x=-29/29

x=-1

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