You flip the signs when you are dividing by a negative value. -2x+3>15 -2x>15-3 -2x>12 x<12/-2 x<-6 Now to test this Try putting x in the original equation when it is -5. -2(-5)+3>15 10+3>15 13>15 This is false because our answer says x is less than -6. Now any value less than -6 will work so let's go with -7. -2(-7)+3>15 14+3>15 17>15 This result is True. Hope this helps out!