-18=-8u+2(u-3)

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Solution for -18=-8u+2(u-3) equation: 



-18=-8u+2(u-3)

We move all terms to the left:

-18-(-8u+2(u-3))=0



We calculate terms in parentheses: -(-8u+2(u-3)), so:

-8u+2(u-3)

We multiply parentheses

-8u+2u-6

We add all the numbers together, and all the variables

-6u-6

Back to the equation:

-(-6u-6)



We get rid of parentheses

6u+6-18=0

We add all the numbers together, and all the variables

6u-12=0

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

6u=12

u=12/6

u=2

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