Question

Match each expression to its simplified form

Answer 1

12-1/2r => (13− 3/ 2 r)−(1−r)

r-13/6 => (7r-3/2)-(2/3+6r)

13r+20 => (6r+7)+(13+7r)

-12+r => (−8−r)+(2r−4)

Explanation:

Answer 2

(6r+7) + (13+7r) = 13r+20
(7r-3/2) - (2/3+6r) = r-13/6