Valen and Pierre had $1358. Valen spent
38 of his money on a portable air-conditioner. Pierre spent
16 of his money on a home theater system. The portable air-conditioner cost $207 more than the home theater system. How much money did Valen have at first?
|
Valen |
Pierre |
Total |
Before |
8 u |
+ 552 |
6x3 = 18 u |
1358 |
Change |
- 3 u |
- 207 |
- 1x3 = - 3 u |
|
Comparing the portable air-conditioner and the home theater system |
207 more |
|
|
After |
5 u |
+ 345 |
5x3 = 15 u |
|
207 ÷ 3 = 69
5 x 69 = 345
8 x 69 = 552
Total amount that Valen and Pierre had at first
= 8 u + 552 + 18 u
= 26 u + 552
26 u + 552 = 1358
26 u = 1358 - 552
26 u = 806
1 u = 806 ÷ 26 = 31
Amount that Valen had at first
= 8 u + 552
= 8 x 31 + 552
= 248 + 552
= $800
Answer(s): $800