Question

3r-30=6+7r
solve for r

Answer 1

Answer:

r = -9

Step-by-step explanation:

First we want to ge the rs in the same place:

$3r-7r=6+30$

$-4r = 36$

$r=-9$

Answer 2

Answer:

r= -9

Step-by-step explanation:

$3r-30=6+7r\\Collect like terms\\3r-7r= 6+30\\-4r = 36\\Divide both sides by -4\\r = -9$