2x+21=-1+4x

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Solution for 2x+21=-1+4x equation: 



2x+21=-1+4x

We move all terms to the left:

2x+21-(-1+4x)=0

We add all the numbers together, and all the variables

2x-(4x-1)+21=0

We get rid of parentheses

2x-4x+1+21=0

We add all the numbers together, and all the variables

-2x+22=0

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

-2x=-22

x=-22/-2

x=+11

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