3x=8-21x

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Solution for 3x=8-21x equation: 



3x=8-21x

We move all terms to the left:

3x-(8-21x)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

3x+21x-8=0

We add all the numbers together, and all the variables

24x-8=0

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

24x=8

x=8/24

x=1/3

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