Question

x-y=9and x-2y=7find the value of x and y

Answer 1

x-y =9,x-2y=7 given
Now x-y=9
x=y+9
Substitute x value in the x-2y=7
Y+9-2y=7
9-y=7
9-7=y
Y=2
Now x=y+9
x=2+9=11
Therefore x=11,y=2