13u=45+8u

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Solution for 13u=45+8u equation: 



13u=45+8u

We move all terms to the left:

13u-(45+8u)=0

We add all the numbers together, and all the variables

13u-(8u+45)=0

We get rid of parentheses

13u-8u-45=0

We add all the numbers together, and all the variables

5u-45=0

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

5u=45

u=45/5

u=9

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