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Popular >

|8x+4|<28

Solution

∣ 8 x + 4 ∣ < 28

Solution

- 4 < x < 3

+1

Interval Notation

(- 4, 3)

Solution steps

∣ 8 x + 4 ∣ < 28

Apply absolute rule: If

∣ u ∣ < a, a > 0

then

- a < u < a

- 28 < 8 x + 4 < 28

8 x + 4 > - 28 and 8 x + 4 < 28

x > - 4 and x < 3

Merge Overlapping Intervals

- 4 < x < 3

Popular Examples

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\frac{a + 1}{a ^{2} - a} - \frac{a + 2}{2 a ^{2} - 2}

- 5 x + 8 \leq 23

simplify (y^{2/7})/(y^{2/3)}simplify

\frac{y ^{\frac{2}{7}}}{y ^{\frac{2}{3}}}

\frac{r}{5} > 2

- 8 < 7 - 5 x \leq 127

Frequently Asked Questions (FAQ)

What is |8x+4|<28 ?
The solution to |8x+4|<28 is -4<x<3