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

The answer to -2|y-1|=-18 is y=-8\lor y=10

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-2|y-1|=-18

- 2 ∣ y - 1 ∣ = - 18

y = - 8 or y = 10

Solution steps

- 2 ∣ y - 1 ∣ = - 18

Divide both sides by

- 2

∣ y - 1 ∣ = 9

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

y - 1 = - 9 or y - 1 = 9

y - 1 = - 9 or y - 1 = 9

y = - 8 or y = 10

∣ x ∣ = \frac{2}{5}

∣ 2 x + 5 ∣ + 7 = 3

∣ - A ∣ = - 2

∣ 5 - 2 x ∣ = 15

8 - 12 ∣ k - 5 ∣ = - 4