20-17u+20=-20-2u

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Solution for 20-17u+20=-20-2u equation: 



20-17u+20=-20-2u

We move all terms to the left:

20-17u+20-(-20-2u)=0

We add all the numbers together, and all the variables

-17u-(-2u-20)+20+20=0

We add all the numbers together, and all the variables

-17u-(-2u-20)+40=0

We get rid of parentheses

-17u+2u+20+40=0

We add all the numbers together, and all the variables

-15u+60=0

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

-15u=-60

u=-60/-15

u=+4

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