Question

Find the value of x and y (2x+y,2) = (1,x-y)

Answer 1

Answer:

2x+y=1

x-y=2

2x+y=1

x-y=2

adding

y gets cancelled.

3x=3

x=1

therefore

x-y=2

1-y=2

-y=2-1

-y=1

y=-1

Answer 2

Answer:

(2x+y,2) = (1,x-y)

2x+y =1 ......१ and x-y=2.......२

add eq 1 and eq 2

3x=3

x=1

put back x=1 in eq1

2x+y=1

2+y=1

y= -1