x + 109 = 15 * 10
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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
- 42 + x = 63
- x + 171 = 11 * 17
- x / 2 = 20 * 2
- x + 37 = 10 * 4
- 228 - x = 91 * 2
- 53 - x = 72 / 8
- 32 x = 8
- 188 - x = 71 * 2
- x / 5 = 25 * 2
- x - 94 = 101
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