Question

If 6x + 5y = 19 and 5x + 6y = 7 then What is the value of x - y ?

Answer 1

Answer:

hope it helps you!!!!!!

Answer 2

Answer:

x-y=12

Step-by-step explanation:

6x + 5y = 19---------(i)

5x + 6y = 7----------(ii)

36x+30y=114----------(iii); (i)×6

25x+30y=35----------(iv); (ii)×5

-------------------;(iii)-(iv)

11x=79

x=79/11

putting x=79/11 in equation 5x+6y=7

5x+6y=7

5(79/11)+6y=7

395/11+6y=7

6y=7-395/11

6y=77-395/11

6y=-318/11

y=-318/11×6

y=-318/66

y=-53/11

x-y=79/11-(-53)/11

x-y=79/11+53/11

x-y=79+53/11

x-y=132/11

x-y=12