There was an equal number of gold and green beads in a box at first. After 19 green beads were taken out and 23 gold beads were added into the box, there was
18 as many green beads as gold beads. Find the number of green beads in the box at first.
|
Gold beads |
Green beads |
Before |
8 u - 23 |
1 u + 19 |
Change |
+ 23 |
- 19 |
After |
8 u |
1 u |
The number of gold and green beads in the box is the same at first.
8 u - 23 = 1 u + 19
8 u - 1 u = 19 + 23
7 u = 42
1 u = 42 ÷ 7 = 6
Number of green beads at first
= 1 u + 19
= 6 + 19
= 25
Answer(s)25