-20=4(u-3)-2u

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Solution for -20=4(u-3)-2u equation: 



-20=4(u-3)-2u

We move all terms to the left:

-20-(4(u-3)-2u)=0



We calculate terms in parentheses: -(4(u-3)-2u), so:

4(u-3)-2u

We add all the numbers together, and all the variables

-2u+4(u-3)

We multiply parentheses

-2u+4u-12

We add all the numbers together, and all the variables

2u-12

Back to the equation:

-(2u-12)



We get rid of parentheses

-2u+12-20=0

We add all the numbers together, and all the variables

-2u-8=0

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

-2u=8

u=8/-2

u=-4

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