2x + y = 12 এবং x = 3 হলে, x - y = কত?

A 3

B 1

C - 1

D - 3

Solution

Correct Answer: Option D

দেওয়া আছে, 
2x + y = 12
এবং x = 3

এখন, 
2 × 3 + y = 12
বা, 6 + y = 12
বা, y = 12 - 6
বা, y = 6

x - y = 3 - 6
        = - 3

Practice More Questions on Our App!

Download our app for free and access thousands of MCQ questions with detailed solutions