What is the answer to 4|f+1|=6 ?

The answer to 4|f+1|=6 is f=-5/2 \lor f= 1/2

Solve for f: 4|f+1|=6

The solution is f=-5/2 \lor f= 1/2

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4 ∣ f + 1 ∣ = 6

f = - \frac{5}{2} or f = \frac{1}{2}

Solution steps

4 ∣ f + 1 ∣ = 6

Divide both sides by

4

∣ f + 1 ∣ = \frac{3}{2}

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

f + 1 = - \frac{3}{2} or f + 1 = \frac{3}{2}

f + 1 = - \frac{3}{2} or f + 1 = \frac{3}{2}

f = - \frac{5}{2} or f = \frac{1}{2}

∣ v - 1 ∣ = 3

∣ 2 x - 7 ∣ + 5 = 1

∣ 8 - x ∣ = 4

6 x = ∣ 1 + 3 x ∣

∣ 2 x + 5 ∣ - 3 = 0