x + 2y = 8 এবং 2x - 3y = -5 হলে x ও y এর মান কত?
Solution
Correct Answer: Option A
দেওয়া আছে
x + 2y = 8...............(1)
2x - 3y = - 5............(2)
(1)নং × 3 + (2)নং × 2 ⇒
3x + 6y + 4x - 6y = 24 - 10
7x = 14
x = 2
(1) নং হতে পাই
x + 2y = 8
2 + 2y = 8
2y = 8 - 2
2y = 6
y = 3
নির্ণেয় সমাধান (x, y) = (2, 3)
x + 2y = 8...............(1)
2x - 3y = - 5............(2)
(1)নং × 3 + (2)নং × 2 ⇒
3x + 6y + 4x - 6y = 24 - 10
7x = 14
x = 2
(1) নং হতে পাই
x + 2y = 8
2 + 2y = 8
2y = 8 - 2
2y = 6
y = 3
নির্ণেয় সমাধান (x, y) = (2, 3)
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