13=3(u+6)-8u

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Solution for 13=3(u+6)-8u equation: 



13=3(u+6)-8u

We move all terms to the left:

13-(3(u+6)-8u)=0



We calculate terms in parentheses: -(3(u+6)-8u), so:

3(u+6)-8u

We add all the numbers together, and all the variables

-8u+3(u+6)

We multiply parentheses

-8u+3u+18

We add all the numbers together, and all the variables

-5u+18

Back to the equation:

-(-5u+18)



We get rid of parentheses

5u-18+13=0

We add all the numbers together, and all the variables

5u-5=0

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

5u=5

u=5/5

u=1

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