2(u+9)=-2u+42

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Solution for 2(u+9)=-2u+42 equation: 



2(u+9)=-2u+42

We move all terms to the left:

2(u+9)-(-2u+42)=0

We multiply parentheses

2u-(-2u+42)+18=0

We get rid of parentheses

2u+2u-42+18=0

We add all the numbers together, and all the variables

4u-24=0

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

4u=24

u=24/4

u=6

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