Question

If x is nine less than seven and y is nine less seven, what is x less y? Please show me the steps.

Answer 1

\[x=7-9=-2\]\[y=7-9=-2\]\[y-x=-2-(-2)=-2+2=0\]

Answer 2

x=7-9;y=7-9
y-x=(7-9)-(7-9)
y-x=2-2
so,
y-x=0

Answer 3

1)"If x is nine less than seven" i.e x=7-9 which makes x= -2
2)"y is nine less seven" i.e y=7-9 which makes y= -2
3) "what is x less y?" i.e y-x=?
(now substitute the values of x= -2 and y= -2 )
therefore, -2+2= 0