19 - x = 12 / 4
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Shipping and Returns Policy
- Deliver to United States » Shipping Policy «
- - Shipping Cost: $5.99
- - Handling time: 2-3 business days
- - Transit time: 7-10 business days
- Eligible for » Returns & Refund Policy « within 30 days from the date of delivery
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bài tập tìm thành phần chưa biết lớp 3
- 252 - x = 103 * 2
- 4 + x/3 = 6
- x + 33 = 9 * 4
- x + 151 = 11 * 15
- x - 45 = 57
- x * 2 = 15 - 1
- x + 79 = 12 * 7
- 200 - x = 77 * 2
- x * 9 = 200 - 2
- x + 103 = 12 * 10
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