What is the answer to 18=9|-4x-1| ?

The answer to 18=9|-4x-1| is x=-3/4 \lor x= 1/4

Solve for x: 18=9|-4x-1|

The solution is x=-3/4 \lor x= 1/4

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

18 = 9 ∣ - 4 x - 1 ∣

x = - \frac{3}{4} or x = \frac{1}{4}

Decimal

x = - 0.75, x = 0.25

Solution steps

18 = 9 ∣ - 4 x - 1 ∣

Switch sides

9 ∣ - 4 x - 1 ∣ = 18

Divide both sides by

9

∣ - 4 x - 1 ∣ = 2

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 4 x - 1 = - 2 or - 4 x - 1 = 2

- 4 x - 1 = - 2 or - 4 x - 1 = 2

x = - \frac{3}{4} or x = \frac{1}{4}

∣ x + 3 ∣ = 6 - 2 x

x^{2} + 3 x + 2 = 2

∣ 4 a + 2 ∣ = 6

\frac{1}{4} ∣ x - 2 ∣ = 2 x + 3

∣ 5 x - 2 ∣ = 6

What is the answer to 18=9|-4x-1| ?
The answer to 18=9|-4x-1| is x=-3/4 \lor x= 1/4
Solve for x: 18=9|-4x-1|
The solution is x=-3/4 \lor x= 1/4