-4x+20=21+4x

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Solution for -4x+20=21+4x equation: 



-4x+20=21+4x

We move all terms to the left:

-4x+20-(21+4x)=0

We add all the numbers together, and all the variables

-4x-(4x+21)+20=0

We get rid of parentheses

-4x-4x-21+20=0

We add all the numbers together, and all the variables

-8x-1=0

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

-8x=1

x=1/-8

x=-1/8

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