21=4x-2+6x+3

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Solution for 21=4x-2+6x+3 equation: 



21=4x-2+6x+3

We move all terms to the left:

21-(4x-2+6x+3)=0

We add all the numbers together, and all the variables

-(10x+1)+21=0

We get rid of parentheses

-10x-1+21=0

We add all the numbers together, and all the variables

-10x+20=0

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

-10x=-20

x=-20/-10

x=+2

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