What is the answer to |5x+3|=7 ?

The answer to |5x+3|=7 is x=-2\lor x= 4/5

Solve for x: |5x+3|=7

The solution is x=-2\lor x= 4/5

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 5 x + 3 ∣ = 7

x = - 2 or x = \frac{4}{5}

Decimal Notation

x = - 2, x = 0.8

Solution steps

∣ 5 x + 3 ∣ = 7

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

5 x + 3 = - 7 or 5 x + 3 = 7

5 x + 3 = - 7 or 5 x + 3 = 7

x = - 2 or x = \frac{4}{5}

7 + ∣ 7 + 3 x ∣ = 18

x^{2} - 4 x - 5 = 7

x^{2} - 4 = x - 2

∣ 4 x + 3 ∣ - 4 = 3 x

30 = ∣ y + 10 ∣