


Tìm x nếu hiệu của hai số là 5 và số lớn hơn là x, số nhỏ hơn là 7. 315
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- 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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x là số mấy
- Tìm x biết x - 1 = 19. 19
- Tìm nghiệm của x^2 = 25. 153
- Nếu x / 19 = 2, x có giá trị là? 73
- Nếu 15x + 1 = 76, x có giá trị là? 100
- = 4 là bao nhiêu? 204
- Tìm nghiệm của 20x + 3 = 17x + 33. 145
- Tìm x biết (x - 1)(x - 2) = 0. 222
- Giải phương trình x + 19 = 1. 50
- Nếu số đo một góc là x độ và góc đó bù với góc 60 độ, x là số mấy? 240
- Câu hỏi về giá trị của x
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