19u-17u+8u+-20u=-20

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Solution for 19u-17u+8u+-20u=-20 equation: 



19u-17u+8u+-20u=-20

We move all terms to the left:

19u-17u+8u+-20u-(-20)=0

We add all the numbers together, and all the variables

-10u+20=0

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

-10u=-20

u=-20/-10

u=+2

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