Justin had
710 as many beads as Hazel. After Justin bought another 4 beads, he had 14 less beads than Hazel. How many beads did Justin have at first?
|
Justin |
Hazel |
Before |
7 u |
10 u |
Change |
+ 4 |
|
After |
7 u + 4 |
10 u |
Hazel had 14 more beads than Justin in the end. So, if Justin had another 14 beads, he would have the same number of beads as Hazel.
10 u = 7 u + 4 + 14
10 u - 7 u = 4 + 14
3 u = 18
1 u = 18 ÷ 3 = 6
Number of beads that Justin had at first
= 7 u
= 7 x 6
= 42
Answer: 42