Question

31x + 43y = 13 , 43x + 31y = 105 find the value of x-y

Answer 1

Answer:

The valu of (x-y)=23

Step-by-step explanation:

31x+43y=13......(1)

43x+31y=105.........(2)

now , equation (2) minus (-) equation (1) ,we will get

4x-4y=92

or,x-y=(92/4)=23