Question

Hi
I will mark as brain list
Please tell me answer of this question in easy way but Step-by-step explanation ​

Answer 1

Answer:

x-y=4

Step-by-step explanation:

12x+17y=48....(1)

17x+12y=68....(2)

subtracting equation (2)By(1)

17x+12y=68

12x+17y=48

- - -

5x-5y=20

dividing by 5

x-y=4