Edward doesn't know how to do math. Can you help me help him lol

Question

asked Sep 17, 2021 45.9k views

2 Answers

Phil Boltt · Answer 1 · 2021-09-23T05:51:28+0000

Answer: d = 147/4 or 36.75

Edward didn't isolate for 'd' by rearranging the terms.

(4/7)d = 21 (Multiply both sides by 7 to get rid of the 7 on the left side)

4d = 21 · 7

4d = 147 (Divide both sides by 4 to isolate for d)

d = 147/4 or 36.75