3(u+4)=-4u-9

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Solution for 3(u+4)=-4u-9 equation: 



3(u+4)=-4u-9

We move all terms to the left:

3(u+4)-(-4u-9)=0

We multiply parentheses

3u-(-4u-9)+12=0

We get rid of parentheses

3u+4u+9+12=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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