5x - 20y = 60...reduce by dividing by 5 x - 4y = 12 this is the same as the other equation....therefore, it is the same line...meaning infinite solutions ============= y - 7x = -14 y = 7x - 14.....slope = 7, y int = -14
7y - 49x = -2 7y = 49x - 2 y = 7x - 2/7.....slope is 7, y int is -2/7
if the slopes are the same, but the y int are different, then u have a parallel lines with no solutions
