3u-12u-(-16u)+2=-19

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Solution for 3u-12u-(-16u)+2=-19 equation: 



3u-12u-(-16u)+2=-19

We move all terms to the left:

3u-12u-(-16u)+2-(-19)=0

We add all the numbers together, and all the variables

-9u-(-16u)+21=0

We get rid of parentheses

-9u+16u+21=0

We add all the numbers together, and all the variables

7u+21=0

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

7u=-21

u=-21/7

u=-3

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