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Popular >

|x-9|<4

Solution

∣ x - 9 ∣ < 4

Solution

5 < x < 13

+1

Interval Notation

(5, 13)

Solution steps

∣ x - 9 ∣ < 4

Apply absolute rule: If

∣ u ∣ < a, a > 0

then

- a < u < a

- 4 < x - 9 < 4

x - 9 > - 4 and x - 9 < 4

x > 5 and x < 13

Merge Overlapping Intervals

5 < x < 13

Popular Examples

factor 21z^2-16z-20 factor

21 z^{2} - 16 z - 20

- x + 6 < 3

simplify 2(1/4)^2 simplify

2 (\frac{1}{4})^{2}

simplify (-5/2)^{-3}simplify

(- \frac{5}{2})^{- 3}

factor 81+18j+j^2 factor

81 + 18 j + j^{2}

Frequently Asked Questions (FAQ)

What is |x-9|<4 ?
The solution to |x-9|<4 is 5<x<13