2x+1=21+4x

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



2x+1=21+4x

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We get rid of parentheses

2x-4x-21+1=0

We add all the numbers together, and all the variables

-2x-20=0

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

-2x=20

x=20/-2

x=-10

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