Vincent had some marbles at first. After he bought another 56 marbles, he had five times as many marbles as before. How many marbles did Vincent have at first?
| |
Marbles |
| Before |
1 u |
| Change |
+ 56 |
| After |
1 u + 56 = 5 u |
Number of marbles after he bought = 1 u + 56
Number of marbles that is five times as many marbles as before = 5 x 1 u = 5 u
5 u = 1 u + 56
5 u - 1 u = 56
4 u = 56
1 u = 56 ÷ 4 = 14
Number of stickers that Kim had at first
= 1 u
= 14
Answer(s): 14
