What is the answer to |2X|=9 ?

The answer to |2X|=9 is X=-9/2 \lor X= 9/2

The solution is X=-9/2 \lor X= 9/2

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|2X|=9

∣ 2 X ∣ = 9

X = - \frac{9}{2} or X = \frac{9}{2}

Decimal Notation

X = - 4.5, X = 4.5

Solution steps

∣ 2 X ∣ = 9

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

2 X = - 9 or 2 X = 9

2 X = - 9 or 2 X = 9

X = - \frac{9}{2} or X = \frac{9}{2}

3 x - 2 = ∣ x - 7 ∣

18 = 2 ∣ n ∣

∣ - 5 a - 4 ∣ = 32

3 + ∣ t + 4 ∣ = 17

11 = ∣ 2 x - 3 ∣