3(b+13)=-10b

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Solution for 3(b+13)=-10b equation: 



3(b+13)=-10b

We move all terms to the left:

3(b+13)-(-10b)=0

We multiply parentheses

3b-(-10b)+39=0

We get rid of parentheses

3b+10b+39=0

We add all the numbers together, and all the variables

13b+39=0

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

13b=-39

b=-39/13

b=-3

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