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

The answer to 20=|1-3x| is x=-19/3 \lor x=7

Solve for x: 20=|1-3x|

The solution is x=-19/3 \lor x=7

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20 = ∣ 1 - 3 x ∣

x = - \frac{19}{3} or x = 7

Decimal Notation

x = - 6.33333 \dots, x = 7

Solution steps

20 = ∣ 1 - 3 x ∣

Switch sides

∣ 1 - 3 x ∣ = 20

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

1 - 3 x = - 20 or 1 - 3 x = 20

1 - 3 x = - 20 or 1 - 3 x = 20

x = - \frac{19}{3} or x = 7

∣ q + 15 ∣ = 3

- 6 = - 6 ∣ - 9 j ∣

∣ b - 11 ∣ = 15

5 ∣ p ∣ = - 9

x^{4} = ∣ x ∣