20=-5(u+6)

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Solution for 20=-5(u+6) equation: 



20=-5(u+6)

We move all terms to the left:

20-(-5(u+6))=0



We calculate terms in parentheses: -(-5(u+6)), so:

-5(u+6)

We multiply parentheses

-5u-30

Back to the equation:

-(-5u-30)



We get rid of parentheses

5u+30+20=0

We add all the numbers together, and all the variables

5u+50=0

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

5u=-50

u=-50/5

u=-10

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