-98=3-2(-5-7r)

Solution for -98=3-2(-5-7r) equation:

-98=3-2(-5-7r)

We move all terms to the left:

-98-(3-2(-5-7r))=0

We add all the numbers together, and all the variables

-(3-2(-7r-5))-98=0


We calculate terms in parentheses: -(3-2(-7r-5)), so:

3-2(-7r-5)

determiningTheFunctionDomain
-2(-7r-5)+3

We multiply parentheses

14r+10+3

We add all the numbers together, and all the variables

14r+13

Back to the equation:

-(14r+13)


We get rid of parentheses

-14r-13-98=0

We add all the numbers together, and all the variables

-14r-111=0

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

-14r=111

r=111/-14

r=-7+13/14