Question

solve the following pair of equation graphically​

Answer 1

Answer 1.

First of all add both the equations

(3x+y=10) +(2x-y=5)

Then you will get: 3x + 2x +y -y = 10+5

5x = 15

Then : x = 15/5= 3

And : 2x-y=5

Then : 2 * 3 - y = 5

6-y=5

y=6-5 = 1