Question

solve the following sub question
6x - 5y = 12 and 5x-6y = 21 then find the value of (x-y) ​

Answer 1

let x=3

6(3)-5y=12

18-5y=12

-5y=12-18

-5y=-6

y=6/5

let x=6

5(6)-6y=21

30-6y=21

-6y=21-30

-6y=-9

6y=9

y=9/6

=3/2