Which solution set satisfies the inequality z + 17 < - 4?

Substract 17 from both sides

z+17 - 17 < - 4 - 17

17-17=0

z+0 < - 21

z<-21

there will be no change in sign since you are not multiplying or dividng by a negtive number

which can be represented as ( - infinity, 21)

note the parenthesis, less than and greater than will use a parenthesis

less than and equal will use a bracket

so will greater than and equal

Z+17<-4

-17 - 17

z< - 21

the answer is A