What is the answer to 2|3x+1|=20 ?

The answer to 2|3x+1|=20 is x=-11/3 \lor x=3

Solve for x: 2|3x+1|=20

The solution is x=-11/3 \lor x=3

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2 ∣ 3 x + 1 ∣ = 20

x = - \frac{11}{3} or x = 3

Solution steps

2 ∣ 3 x + 1 ∣ = 20

Divide both sides by

2

∣ 3 x + 1 ∣ = 10

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

3 x + 1 = - 10 or 3 x + 1 = 10

3 x + 1 = - 10 or 3 x + 1 = 10

x = - \frac{11}{3} or x = 3

(x - 12) 4 = 36

e^{- 0.5}

3 x^{2} - 6 x - 3

16 k^{2} - 24 k + 8

\frac{5 x + 1}{x - 1} = 3