3x+5-x=31

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Solution for 3x+5-x=31 equation: 



3x+5-x=31

We move all terms to the left:

3x+5-x-(31)=0

We add all the numbers together, and all the variables

2x-26=0

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

2x=26

x=26/2

x=13

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