Question

Sifat-sifat pertidaksamaan

1. 1-x<2+7x =
2. 2x-1≤5 =
3. 4x≤-12 =
ditulis caranya..

Answer 1

1. 1-x<2+7x = -x-7x<2-1 = -8x<1 = x<-1/8.
2. 2x-1<5 = 2x<5+1 = 2x<6 = x<3.
3. 4x<-12 = x<-12/4 = x<-3.