-19+20+3u=19+u

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Solution for -19+20+3u=19+u equation: 



-19+20+3u=19+u

We move all terms to the left:

-19+20+3u-(19+u)=0

We add all the numbers together, and all the variables

3u-(u+19)-19+20=0

We add all the numbers together, and all the variables

3u-(u+19)+1=0

We get rid of parentheses

3u-u-19+1=0

We add all the numbers together, and all the variables

2u-18=0

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

2u=18

u=18/2

u=9

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