Question

Please Help Marking BRAINLIEST

Answer 1

Answer:

(-∞, 5 U 7 , ∞)

Step-by-step explanation:

Given the inequality expressions

d – 4 > 3 or d – 4 < 1

For d - 4 > 3

Add 4 to both sides

d-4 + 4 > 3 + 4

d > 7

7 < d

this means that d is greater than 7,

(7 , ∞)

For d - 4 < 1

Add 4 to both sides

d - 4 + 4 < 1 + 4

d < 5

This means d is less than 5

(-∞, 5)

The required solution is (-∞, 5 U 7 , ∞)