What is the answer to -8|10k|=-480 ?

The answer to -8|10k|=-480 is k=-6\lor k=6

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-8|10k|=-480

- 8 ∣ 10 k ∣ = - 480

k = - 6 or k = 6

Solution steps

- 8 ∣ 10 k ∣ = - 480

Divide both sides by

- 8

∣ 10 k ∣ = 60

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

10 k = - 60 or 10 k = 60

10 k = - 60 or 10 k = 60

k = - 6 or k = 6

∣ - 9 x ∣ = 54

- (x + 3)^{2} = ∣ x ∣ - 9

3 ∣ 4 - 3 x ∣ + 7 = 25

∣ 2 x + 14 ∣ = 60

∣ 8 - 2 x ∣ + x - 5 = 0