If x is nine less than seven and y is nine less seven, what is x less y? Please show me the steps.
x=7-9;y=7-9 y-x=(7-9)-(7-9) y-x=2-2 so, y-x=0
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
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