Juan collected 5 times as many rocks as Will. When Juan gave Will some of his rocks, they each had 15. How many rocks had Juan given to Will?

Guest Apr 15, 2021

#1**+1 **

j = 5w

s = 'some'

j - s = 15 and w + s = 15 sub in 5w = j

5w - s = 15

Add red equations

6w = 30

w = 5 originally he wound up with 15 so juan gave him 10 = 'some'

ANOTHER method.....they both end up with 15 = 30 total

j + w = 30

5w + w = 30

w = 5 then he wound up with 15 so juan gave him 10 = 'some'

ElectricPavlov Apr 15, 2021