Question

if 3x-4y=11,4x-3y=10 find x-y​

Answer 1

Answer:

3x-4y=11.......(i)

4x-3y=10••••••••(ii)

Step-by-step explanation:

now,

adding equation (i)and(ii) we have

3x-4y+4x-3y=11+10

7x-7y=21

again,

taking 7 as a common factor, we get

7(x-y)=7

x-y=7/7

Therefore, x-y= 1.