Q. Solve for d.−5≤d+15≤11Write your answer as a compound inequality with integers.Choices:(A) 10≤d≤−4(B) −20≤d≤26(C) −20≤d≤−4(D) 10≤d≤26
Identify operation for isolation:−5≤d+15≤11Which operation should we use to isolate d?In d+15, 15 is being added to d.Subtraction should be used to isolate d.
Use subtraction to isolate d:−5≤d+15≤11Solve for d.−5−15≤d+15−15≤11−15−20≤d≤−4