-86=2(1-5r)-8

Solution for -86=2(1-5r)-8 equation:

-86=2(1-5r)-8

We move all terms to the left:

-86-(2(1-5r)-8)=0

We add all the numbers together, and all the variables

-(2(-5r+1)-8)-86=0


We calculate terms in parentheses: -(2(-5r+1)-8), so:

2(-5r+1)-8

We multiply parentheses

-10r+2-8

We add all the numbers together, and all the variables

-10r-6

Back to the equation:

-(-10r-6)


We get rid of parentheses

10r+6-86=0

We add all the numbers together, and all the variables

10r-80=0

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

10r=80

r=80/10

r=8