-19-20+u=18-2u

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Solution for -19-20+u=18-2u equation: 



-19-20+u=18-2u

We move all terms to the left:

-19-20+u-(18-2u)=0

We add all the numbers together, and all the variables

u-(-2u+18)-19-20=0

We add all the numbers together, and all the variables

u-(-2u+18)-39=0

We get rid of parentheses

u+2u-18-39=0

We add all the numbers together, and all the variables

3u-57=0

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

3u=57

u=57/3

u=19

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