3x-7=x+1.

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Solution for 3x-7=x+1. equation: 



3x-7=x+1.

We move all terms to the left:

3x-7-(x+1.)=0

We add all the numbers together, and all the variables

3x-(x+1)-7=0

We get rid of parentheses

3x-x-1-7=0

We add all the numbers together, and all the variables

2x-8=0

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

2x=8

x=8/2

x=4

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