(x/2) + (y/3) = 3, x - (y/3) = 3 হলে x + y এর মান কত?

প্রশ্ন: (x/2) + (y/3) = 3, x - (y/3) = 3 হলে x + y এর মান কত?

সমাধান:
(x/2) + (y/3) = 3................(1)
x - (y/3) = 3...................(2)

(1) + (2) ⇒
(x/2) + (y/3) + x - (y/3) = 3 + 3
(x/2) + x = 6
(x + 2x)/2 = 6
3x/2 = 6
x = (2 × 6)/3
x = 4

(1) ⇒
(4/2) + (y/3) = 3
2 + y/3 = 3
y/3 = 3 - 2
y/3 = 1
y = 3

x + y = 4 + 3 = 7