-3=(r/86)

Solution for -3=(r/86) equation:

-3=(r/86)

We move all terms to the left:

-3-((r/86))=0

We add all the numbers together, and all the variables

-((+r/86))-3=0

We multiply all the terms by the denominator


-((+r-3*86))=0


We calculate terms in parentheses: -((+r-3*86)), so:

(+r-3*86)

We add all the numbers together, and all the variables

(r-258)

We get rid of parentheses

r-258

Back to the equation:

-(r-258)


We get rid of parentheses

-r+258=0

We add all the numbers together, and all the variables

-1r+258=0

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

-r=-258

r=-258/-1

r=+258