42=2.25/(r-2.25)

Solution for 42=2.25/(r-2.25) equation:

42=2.25/(r-2.25)

We move all terms to the left:

42-(2.25/(r-2.25))=0


Domain of the equation: (r-2.25))!=0

r∈R


We multiply all the terms by the denominator


-(2.25+42*(r-2.25))=0


We calculate terms in parentheses: -(2.25+42*(r-2.25)), so:

2.25+42*(r-2.25)

determiningTheFunctionDomain
42*(r-2.25)+2.25

We multiply parentheses

42r-94.5+2.25

We add all the numbers together, and all the variables

42r-92.25

Back to the equation:

-(42r-92.25)


We get rid of parentheses

-42r+92.25=0

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

-42r=-92.25

r=-92.25/-42

r=2+3.6666666666667/18.666666666667