-3u=2u-20

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Solution for -3u=2u-20 equation: 



-3u=2u-20

We move all terms to the left:

-3u-(2u-20)=0

We get rid of parentheses

-3u-2u+20=0

We add all the numbers together, and all the variables

-5u+20=0

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

-5u=-20

u=-20/-5

u=+4

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