3x-21=29+x

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Solution for 3x-21=29+x equation: 



3x-21=29+x

We move all terms to the left:

3x-21-(29+x)=0

We add all the numbers together, and all the variables

3x-(x+29)-21=0

We get rid of parentheses

3x-x-29-21=0

We add all the numbers together, and all the variables

2x-50=0

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

2x=50

x=50/2

x=25

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