Question

What is the solution to the inequality d over 7 + 4 ≤ 0?

(–∞, –28)
(–∞, –28]
(28, ∞)
[28, ∞)

Answer 1

(–∞, –28]

Explanation:

by subtracting 4 both sides

and by multiplying 7 both sides

d/7<0-4

d/7<-4

d<7×-4=-28

d<-28

Answer 2

Hey!

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Solve: d/7 + 4 ≤ 0

Simplify: 1/7d + 4 ≤ 0

Subtract 4 to both sides: 1/7d + 4 - 4 ≤ 0 - 4

Simplify: 1/7d ≤ -4

Multiply 7 to both sides: 1/7d * 7 ≤ -4 * 7

Simplify: d ≤ -28

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Answer:

(–∞, –28]

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Hope This Helped! Good Luck!