4x+21=-x+1

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Solution for 4x+21=-x+1 equation: 



4x+21=-x+1

We move all terms to the left:

4x+21-(-x+1)=0

We add all the numbers together, and all the variables

4x-(-1x+1)+21=0

We get rid of parentheses

4x+1x-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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