x * 3 = 55 - 1
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$34.99
$29.99
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
- x * 7 = 200 - 6
- x * 3 = 40 - 1
- x / 3 = 4 * 2
- 3x - 5 = 1
- x / 9 = 80 * 6
- x + 4 + x = 10
- 130 - x = 42 * 2
- x / 5 = 55 * 5
- x + 221 = 11 * 22
- 73 - x = 16 * 2
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