What is the answer to |4r-3|=7 ?

The answer to |4r-3|=7 is r=-1\lor r= 5/2

Solve for r: |4r-3|=7

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

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

∣ 4 r - 3 ∣ = 7

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

Decimal Notation

r = - 1, r = 2.5

Solution steps

∣ 4 r - 3 ∣ = 7

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

4 r - 3 = - 7 or 4 r - 3 = 7

4 r - 3 = - 7 or 4 r - 3 = 7

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

∣ 4 x - 7 ∣ = 2 x + 5

x^{2} + 1 = ∣ 2 x ∣

0 = - 9 ∣ y ∣

∣ 23 - 2 x ∣ = 0

- ∣ x - 5 ∣ - 2 = - 3