What is the answer to 6|2+4k|=84 ?

The answer to 6|2+4k|=84 is k=-4\lor k=3

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

6|2+4k|=84

6 ∣ 2 + 4 k ∣ = 84

k = - 4 or k = 3

Solution steps

6 ∣ 2 + 4 k ∣ = 84

Divide both sides by

6

∣ 2 + 4 k ∣ = 14

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

2 + 4 k = - 14 or 2 + 4 k = 14

2 + 4 k = - 14 or 2 + 4 k = 14

k = - 4 or k = 3

∣ x - 1 ∣ < 1

4 x - 60 = 30 - x

\frac{1}{( \frac{3}{5} )}

\frac{10 z + 4}{5} = 15

- 41 a + 10 + 21 a^{2}