8x=21-x=7(x-3)

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Solution for 8x=21-x=7(x-3) equation: 



8x=21-x=7(x-3)

We move all terms to the left:

8x-(21-x)=0

We add all the numbers together, and all the variables

8x-(-1x+21)=0

We get rid of parentheses

8x+1x-21=0

We add all the numbers together, and all the variables

9x-21=0

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

9x=21

x=21/9

x=2+1/3

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