3u+1=u+8

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Solution for 3u+1=u+8 equation: 



3u+1=u+8

We move all terms to the left:

3u+1-(u+8)=0

We get rid of parentheses

3u-u-8+1=0

We add all the numbers together, and all the variables

2u-7=0

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

2u=7

u=7/2

u=3+1/2

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