15=18-1/2b

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Solution for 15=18-1/2b equation: 



15=18-1/2b

We move all terms to the left:

15-(18-1/2b)=0



Domain of the equation: 2b)!=0

b!=0/1

b!=0

b∈R



We add all the numbers together, and all the variables

-(-1/2b+18)+15=0

We get rid of parentheses

1/2b-18+15=0

We multiply all the terms by the denominator


-18*2b+15*2b+1=0

Wy multiply elements

-36b+30b+1=0

We add all the numbers together, and all the variables

-6b+1=0

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

-6b=-1

b=-1/-6

b=1/6

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