15-(42/b)=8

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Solution for 15-(42/b)=8 equation: 



15-(42/b)=8

We move all terms to the left:

15-(42/b)-(8)=0



Domain of the equation: b)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

-(+42/b)+15-8=0

We add all the numbers together, and all the variables

-(+42/b)+7=0

We get rid of parentheses

-42/b+7=0

We multiply all the terms by the denominator


7*b-42=0

We add all the numbers together, and all the variables

7b-42=0

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

7b=42

b=42/7

b=6

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