3u+63=u+71

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Solution for 3u+63=u+71 equation: 



3u+63=u+71

We move all terms to the left:

3u+63-(u+71)=0

We get rid of parentheses

3u-u-71+63=0

We add all the numbers together, and all the variables

2u-8=0

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

2u=8

u=8/2

u=4

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