An 18-foot tree is 3 times as tall as when planted. Which equation can you solve to find out the tree's height on the day it was planted?
CLEAR CHECK
3 • h = 18
h + 3 = 18
18 • h = 3
3 • 18 = h
CLEAR CHECK
3 • h = 18
h + 3 = 18
18 • h = 3
3 • 18 = h