3(u+7)=-15

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Solution for 3(u+7)=-15 equation: 



3(u+7)=-15

We move all terms to the left:

3(u+7)-(-15)=0

We add all the numbers together, and all the variables

3(u+7)+15=0

We multiply parentheses

3u+21+15=0

We add all the numbers together, and all the variables

3u+36=0

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

3u=-36

u=-36/3

u=-12

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