13b=-4b-9

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Solution for 13b=-4b-9 equation: 



13b=-4b-9

We move all terms to the left:

13b-(-4b-9)=0

We get rid of parentheses

13b+4b+9=0

We add all the numbers together, and all the variables

17b+9=0

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

17b=-9

b=-9/17

b=-9/17

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