-3(7-5b)=54

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Solution for -3(7-5b)=54 equation: 



-3(7-5b)=54

We move all terms to the left:

-3(7-5b)-(54)=0

We add all the numbers together, and all the variables

-3(-5b+7)-54=0

We multiply parentheses

15b-21-54=0

We add all the numbers together, and all the variables

15b-75=0

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

15b=75

b=75/15

b=5

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