
Câu hỏi Toán học
Authored by Ngần Nhẫn
Mathematics
1st Grade
Used 1+ times

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11 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình nào sau đây là phương trình bậc nhất với hai ẩn?
x^2 + y^2 = 1
2x + 3y = 7
x^3 + y^3 = 9
xy = 2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong phương trình bậc nhất với hai ẩn 4x−y= 9, hệ số a là gì?
4
-1
9
-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải phương trình bậc nhất với hai ẩn 3x+ 2y= 8 khi x= 2. Tìm giá trị y.
2
4
6
8
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm giá trị y trong phương trình 5x−3y= 12 khi y= 4.
2
4
6
8
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải hệ phương trình sau: x+ 2y= 7, 3x−y= 4
(x, y) = (3,2)
(x, y) = (4,1)
(x, y) = (5,−1)
(x, y) = (2,3)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tìm giá trị y trong phương trình 7x−5y= 14 và x= 3.
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Giải hệ phương trình sau: 2x+ 3y= 10, 4x−5y= 6
(x, y) = (3,2)
(x, y) = (2,4)
(x, y) = (1,2)
(x, y) = (4,1)
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