-20=2(u+2)-8u

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Solution for -20=2(u+2)-8u equation: 



-20=2(u+2)-8u

We move all terms to the left:

-20-(2(u+2)-8u)=0



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

2(u+2)-8u

We add all the numbers together, and all the variables

-8u+2(u+2)

We multiply parentheses

-8u+2u+4

We add all the numbers together, and all the variables

-6u+4

Back to the equation:

-(-6u+4)



We get rid of parentheses

6u-4-20=0

We add all the numbers together, and all the variables

6u-24=0

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

6u=24

u=24/6

u=4

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