Question

What is the equation -5-r=1+2r

Answer 1

R=-2 because you can add the 5 to the one and that cancels out the -5 on the left, now your equation is -r=6+2r so you can subtract the 2r from both sides and that leaves you with -3r=6 all there is to do now is divide by -3 on both sides

Answer 2

$-5-r=1+2r$ 

$-r=1+2r+5$ 

$-r=2r+6$ 

$-r-2r=6$ 

$-3r=6$   $|\text{Isolate r}$

$r=-2$