2(r-3r)=2(-4-r)

Solution for 2(r-3r)=2(-4-r) equation:

2(r-3r)=2(-4-r)

We move all terms to the left:

2(r-3r)-(2(-4-r))=0

We add all the numbers together, and all the variables

2(-2r)-(2(-1r-4))=0

We multiply parentheses

-4r-(2(-1r-4))=0


We calculate terms in parentheses: -(2(-1r-4)), so:

2(-1r-4)

We multiply parentheses

-2r-8

Back to the equation:

-(-2r-8)


We get rid of parentheses

-4r+2r+8=0

We add all the numbers together, and all the variables

-2r+8=0

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

-2r=-8

r=-8/-2

r=+4