What is the answer to 4=|2+5x| ?

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

Solve for x: 4=|2+5x|

The solution is x=-6/5 \lor x= 2/5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

4 = ∣ 2 + 5 x ∣

x = - \frac{6}{5} or x = \frac{2}{5}

Decimal Notation

x = - 1.2, x = 0.4

Solution steps

4 = ∣ 2 + 5 x ∣

Switch sides

∣ 2 + 5 x ∣ = 4

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

2 + 5 x = - 4 or 2 + 5 x = 4

2 + 5 x = - 4 or 2 + 5 x = 4

x = - \frac{6}{5} or x = \frac{2}{5}

5 - 9 w = 23

b^{\frac{1}{3}} (ab)^{\frac{1}{2}}

50 \cdot 10

2 x - x + 4 + 2 = 8