15=(-15)-8u

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Solution for 15=(-15)-8u equation: 



15=(-15)-8u

We move all terms to the left:

15-((-15)-8u)=0



We calculate terms in parentheses: -((-15)-8u), so:

(-15)-8u

determiningTheFunctionDomain
-8u+(-15)

We add all the numbers together, and all the variables

-8u-15

Back to the equation:

-(-8u-15)



We get rid of parentheses

8u+15+15=0

We add all the numbers together, and all the variables

8u+30=0

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

8u=-30

u=-30/8

u=-3+3/4

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