Question

15r + 8 = 11r - 20 solve for r and show your work in rows

Answer 1

r= -7

Explanation:

15r+8=11r-20 (minus 11r from both sides)

4r+8=-20 (minus 8 from both sides)

4r = -28 (divide both sides by 4)

r= -7

Answer 2

r=-7

Explanation:

`15r - 11r = - 20 - 8`

`4r = - 28`

`r = - 28 / 4 = - 7`