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Popular >

|9-3x|>= 12

Solution

∣ 9 - 3 x ∣ \geq 12

Solution

x \leq - 1 or x \geq 7

+1

Interval Notation

(- \infty, - 1] \cup [7, \infty)

Solution steps

∣ 9 - 3 x ∣ \geq 12

Apply absolute rule: If

∣ u ∣ \geq a, a > 0

then

u \leq - a

or

u \geq a

9 - 3 x \leq - 12 or 9 - 3 x \geq 12

9 - 3 x \leq - 12 or 9 - 3 x \geq 12

x \leq - 1 or x \geq 7

Popular Examples

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\frac{m ^{5} r ^{2}}{m ^{2} r ^{3}}

3 x^{2} - 2 x - 9 = 0

Frequently Asked Questions (FAQ)

What is |9-3x|>= 12 ?
The solution to |9-3x|>= 12 is x<=-1\lor x>= 7