8x-21=3+2x

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Solution for 8x-21=3+2x equation: 



8x-21=3+2x

We move all terms to the left:

8x-21-(3+2x)=0

We add all the numbers together, and all the variables

8x-(2x+3)-21=0

We get rid of parentheses

8x-2x-3-21=0

We add all the numbers together, and all the variables

6x-24=0

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

6x=24

x=24/6

x=4

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