Question

How do you simplify the following problem?: 9−4d≥−3

Answer 1

d ≤3

Explanation:

9−4d≥−3

Subtract 9 from each side

9-9−4d≥−3-9

−4d≥−12

Divide by -4, remembering to flip the inequality

-4d/-4 ≤ -12/-4

d ≤3