Steve goes 4 km towards east from a point A to reach point B. From B, He moves back 7 km towards west along the same road. Calculate the distance he is now from point A?

Question: Steve goes 4 km towards east from a point A to reach point B. From B, He moves back 7 km towards
west along the same road. Calculate the distance he is now from point A?

Answer: Before solving this question, let us consider that distance towards east is represented by a positive
integer and distance towards west is represented by a negative integer. I plot a...