-2(u+9)=-4u+2

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Solution for -2(u+9)=-4u+2 equation: 



-2(u+9)=-4u+2

We move all terms to the left:

-2(u+9)-(-4u+2)=0

We multiply parentheses

-2u-(-4u+2)-18=0

We get rid of parentheses

-2u+4u-2-18=0

We add all the numbers together, and all the variables

2u-20=0

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

2u=20

u=20/2

u=10

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