Let x = number of games played. equation:   37.50 – .5x = 42.75 – .75x step 1:    37.50 – 1.25x = 42.75 step 2:    – 1.25x = 5.25 step 3:    – 4.2 = x sandor knows his answer is incorrect because a negative number of games cannot be played. what was sandor’s mistake?