2x+21=39-5x

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Solution for 2x+21=39-5x equation: 



2x+21=39-5x

We move all terms to the left:

2x+21-(39-5x)=0

We add all the numbers together, and all the variables

2x-(-5x+39)+21=0

We get rid of parentheses

2x+5x-39+21=0

We add all the numbers together, and all the variables

7x-18=0

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

7x=18

x=18/7

x=2+4/7

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