What is the answer to |4x+7|+2=5 ?

The answer to |4x+7|+2=5 is x=-5/2 \lor x=-1

Solve for x: |4x+7|+2=5

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

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 4 x + 7 ∣ + 2 = 5

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

Decimal Notation

x = - 2.5, x = - 1

Solution steps

∣ 4 x + 7 ∣ + 2 = 5

Move

2

to the right side

∣ 4 x + 7 ∣ = 3

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

4 x + 7 = - 3 or 4 x + 7 = 3

4 x + 7 = - 3 or 4 x + 7 = 3

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

\frac{2}{5 - 1}

x^{2} + 23 x = 0

\frac{m}{- 12} = 4

4 (5 x + 1) = \frac{1}{2} (20 x + 16) + 16

- 4 x^{2} - 8 x + 21 = 0