12x > 18x - 27 - 15 12x > 18x - 42 12x - 18x > -42 -6x > -42 x < -42/-6 two negatives make a positive so now its x < 42/6 Lastly divide 42/6 so it can equal 7
12x>9(2x-3)-15 12x>18x-27-15 12x-18x>-27-15 -6x>-42 "x" must be always positive, therefore we have to change the sign on both sides of the inequality, and we have to change "<" by ">".
