Question

34. Find the solution of the following pair of linear equations by graphical method:
2x + y = 12
x-y=3​

Answer 1

Answer:

x=5 , y = 2

Explanation:

2x + y = 12

x - y = 3

3x = 15

x = 15/3

x = 5

Substitute x in equation 2

x - y = 3

5 - y = 3

- y = 3 - 5

- y = -2

y = 2