What is the answer to |2y|-4=16 ?

The answer to |2y|-4=16 is y=-10\lor y=10

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|2y|-4=16

∣ 2 y ∣ - 4 = 16

y = - 10 or y = 10

Solution steps

∣ 2 y ∣ - 4 = 16

Move

4

to the right side

∣ 2 y ∣ = 20

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

2 y = - 20 or 2 y = 20

2 y = - 20 or 2 y = 20

y = - 10 or y = 10

∣ x - 1 ∣ = x^{2} + 1

∣ a + 3 ∣ = 0

∣ 2 x + 6 ∣ + 5 = 7

∣ 9 y + 9 ∣ - 6 = 0

\frac{∣ p + 10 ∣}{6} = 3