Answer :
9(2x+1)<9x-18
18x+9<9x-18
minus 9x from both sides
9x+9<-18
minus 9 from both sides
9x<-27
divide both sides by 9
x<-3
so anything smaller than -3
only possible one is -4
A is answer
18x+9<9x-18
minus 9x from both sides
9x+9<-18
minus 9 from both sides
9x<-27
divide both sides by 9
x<-3
so anything smaller than -3
only possible one is -4
A is answer