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प्रश्न
The point of intersection of 3x – y = 4 and x + 7 = 8 is
विकल्प
(5, 3)
(2, 4)
(3, 5)
(4, 4)
उत्तर
(3, 5)
Explanation;
Hint:
3x − y = 4 ...(1)
x + y = 8 ...(2)
(1) + (2) ⇒ 4x = 12
x = `12/4` = 3
Substitute the value of x = 3 in (2)
3 + 7 = 8
y = 8 – 3 = 5
The point of intersection is (3, 5)
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