What is the answer to |7x+2|=8 ?

The answer to |7x+2|=8 is x=-10/7 \lor x= 6/7

Solve for x: |7x+2|=8

The solution is x=-10/7 \lor x= 6/7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 7 x + 2 ∣ = 8

x = - \frac{10}{7} or x = \frac{6}{7}

Decimal Notation

x = - 1.42857 \dots, x = 0.85714 \dots

Solution steps

∣ 7 x + 2 ∣ = 8

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

7 x + 2 = - 8 or 7 x + 2 = 8

7 x + 2 = - 8 or 7 x + 2 = 8

x = - \frac{10}{7} or x = \frac{6}{7}

∣ x - 12 ∣ = 5 x + 24

1 - ∣ x ∣ = 5

6 - 3 ∣ - 4 x - 4 ∣ = 33

3 ∣ x ∣ - 5 = - 2 x - 7

4 ∣ x + 7 ∣ - 10 = 14