19-15u=-18u-20

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Solution for 19-15u=-18u-20 equation: 



19-15u=-18u-20

We move all terms to the left:

19-15u-(-18u-20)=0

We get rid of parentheses

-15u+18u+20+19=0

We add all the numbers together, and all the variables

3u+39=0

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

3u=-39

u=-39/3

u=-13

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