What is the answer to -2|-2k+1|=-18 ?

The answer to -2|-2k+1|=-18 is k=-4\lor k=5

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-2|-2k+1|=-18

- 2 ∣ - 2 k + 1 ∣ = - 18

k = - 4 or k = 5

Solution steps

- 2 ∣ - 2 k + 1 ∣ = - 18

Divide both sides by

- 2

∣ - 2 k + 1 ∣ = 9

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

- 2 k + 1 = - 9 or - 2 k + 1 = 9

- 2 k + 1 = - 9 or - 2 k + 1 = 9

k = - 4 or k = 5

1 = ∣ 5 x + 9 ∣ + 6

∣ 4 x + 6 ∣ - 4 x = - 10

∣ 13 + 4 y ∣ = 13

\frac{t}{2} = 15

- 8 = ∣ x ∣

What is the answer to -2|-2k+1|=-18 ?
The answer to -2|-2k+1|=-18 is k=-4\lor k=5
Solve for k: -2|-2k+1|=-18
The solution is k=-4\lor k=5