-2(u-10)=-20

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Solution for -2(u-10)=-20 equation: 



-2(u-10)=-20

We move all terms to the left:

-2(u-10)-(-20)=0

We add all the numbers together, and all the variables

-2(u-10)+20=0

We multiply parentheses

-2u+20+20=0

We add all the numbers together, and all the variables

-2u+40=0

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

-2u=-40

u=-40/-2

u=+20

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