Question 65547
10(2x)-y=4
2x-y=6
20x -y=4  ---------------(1)
-2x+y=-6  ----------------(2)
=18x  =-2
x =-2/18 
 x=-1/9
substitute the value of x in equ 2

-2x+y=6
-2(-1/9)+y= -6
+2/9+y =-6
y=-6-2/9
y=-56/9
y=6.22





y=6.66