3(b+-8)=-15

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Solution for 3(b+-8)=-15 equation: 



3(b+-8)=-15

We move all terms to the left:

3(b+-8)-(-15)=0

We add all the numbers together, and all the variables

3(b-8)-(-15)=0

We add all the numbers together, and all the variables

3(b-8)+15=0

We multiply parentheses

3b-24+15=0

We add all the numbers together, and all the variables

3b-9=0

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

3b=9

b=9/3

b=3

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