-21(5b+18)+18b=-75

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Solution for -21(5b+18)+18b=-75 equation: 



-21(5b+18)+18b=-75

We move all terms to the left:

-21(5b+18)+18b-(-75)=0

We add all the numbers together, and all the variables

18b-21(5b+18)+75=0

We multiply parentheses

18b-105b-378+75=0

We add all the numbers together, and all the variables

-87b-303=0

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

-87b=303

b=303/-87

b=-3+14/29

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