Question

1. Solve 2r - 15 = -9r + 18.

a.) r = -0.3

b.)r = -3

c.)r = 0.3

d.)r = 3​

Answer 1

D

Explanation:

cancel out -9r on the right side by adding it to the left side. so then you get 11r-15=18 . then add 15 to the right to get 11r by itself . you'll get 11r=33 . divide both sides by 11 and you'll get r=3 ! :)

Answer 2

D

Explanation:

11r = 33

r = 3