x / 4 = 20 / 5
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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
- 10 - 2x = 4
- x + 217 = 14 * 21
- 53 - x = 72 / 8
- x / 2 = 70 * 9
- x + 169 = 15 * 16
- x + x + 3 = 9
- 242 - x = 98 * 2
- x + 64 = 85
- x * 5 = 175 - 0
- 160 - x = 57 * 2
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