What is the answer to |5-7x|+2=21 ?

The answer to |5-7x|+2=21 is x=-2\lor x= 24/7

Solve for x: |5-7x|+2=21

The solution is x=-2\lor x= 24/7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 5 - 7 x ∣ + 2 = 21

x = - 2 or x = \frac{24}{7}

Decimal Notation

x = - 2, x = 3.42857 \dots

Solution steps

∣ 5 - 7 x ∣ + 2 = 21

Move

2

to the right side

∣ 5 - 7 x ∣ = 19

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 - 7 x = - 19 or 5 - 7 x = 19

5 - 7 x = - 19 or 5 - 7 x = 19

x = - 2 or x = \frac{24}{7}

∣ 2 - 4 x ∣ = 7

8 = 3 ∣ x - 7 ∣ + 4

∣ x + 8 ∣ = 16

∣ 4 n + 2 ∣ = 34

∣ x - 10 ∣ = 3

What is the answer to |5-7x|+2=21 ?
The answer to |5-7x|+2=21 is x=-2\lor x= 24/7
Solve for x: |5-7x|+2=21
The solution is x=-2\lor x= 24/7