8u-4=4(u+9)

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Solution for 8u-4=4(u+9) equation: 



8u-4=4(u+9)

We move all terms to the left:

8u-4-(4(u+9))=0



We calculate terms in parentheses: -(4(u+9)), so:

4(u+9)

We multiply parentheses

4u+36

Back to the equation:

-(4u+36)



We get rid of parentheses

8u-4u-36-4=0

We add all the numbers together, and all the variables

4u-40=0

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

4u=40

u=40/4

u=10

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