13u=72+5u

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Solution for 13u=72+5u equation: 



13u=72+5u

We move all terms to the left:

13u-(72+5u)=0

We add all the numbers together, and all the variables

13u-(5u+72)=0

We get rid of parentheses

13u-5u-72=0

We add all the numbers together, and all the variables

8u-72=0

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

8u=72

u=72/8

u=9

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