-18b-(-15b)+-13b-(-17b)-(-2b)=-9

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Solution for -18b-(-15b)+-13b-(-17b)-(-2b)=-9 equation: 



-18b-(-15b)+-13b-(-17b)-(-2b)=-9

We move all terms to the left:

-18b-(-15b)+-13b-(-17b)-(-2b)-(-9)=0

We add all the numbers together, and all the variables

-31b-(-15b)-(-17b)-(-2b)+9=0

We get rid of parentheses

-31b+15b+17b+2b+9=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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