What is the answer to 2*|x|=9 ?

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

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

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2*|x|=9

2 \cdot ∣ x ∣ = 9

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

Decimal Notation

x = - 4.5, x = 4.5

Solution steps

2 ∣ x ∣ = 9

Divide both sides by

2

∣ x ∣ = \frac{9}{2}

Apply absolute rule: If

∣ u ∣ = a, a > 0

then

u = a

u = - a

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

- x = - 4

5^{2} + 2^{2}

7 \leq 3 y < 15

\frac{12 c ^{9}}{( 4 c ) ^{4}}

∣ x - 24 ∣ \leq 4