3x+1=x+31

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Solution for 3x+1=x+31 equation: 



3x+1=x+31

We move all terms to the left:

3x+1-(x+31)=0

We get rid of parentheses

3x-x-31+1=0

We add all the numbers together, and all the variables

2x-30=0

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

2x=30

x=30/2

x=15

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