What is the answer to |5x+4|=4 ?

The answer to |5x+4|=4 is x=-8/5 \lor x=0

Solve for x: |5x+4|=4

The solution is x=-8/5 \lor x=0

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 5 x + 4 ∣ = 4

x = - \frac{8}{5} or x = 0

Decimal Notation

x = - 1.6, x = 0

Solution steps

∣ 5 x + 4 ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 x + 4 = - 4 or 5 x + 4 = 4

5 x + 4 = - 4 or 5 x + 4 = 4

x = - \frac{8}{5} or x = 0

\frac{3}{8} ∣ x ∣ = 4

\frac{3}{8} ∣ x ∣ = 7

5 ∣ 4 x - 20 ∣ - 40 = 0

7 ∣ 6 + 8 x ∣ + 4 = 74

∣ - x ∣ = 8