What is (x-1)/(x+1)-2/5 <= 0 ?

The solution to (x-1)/(x+1)-2/5 <= 0 is -1<x<= 7/3

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(x-1)/(x+1)-2/5 <= 0

\frac{x - 1}{x + 1} - \frac{2}{5} \leq 0

- 1 < x \leq \frac{7}{3}

Solution steps

\frac{x - 1}{x + 1} - \frac{2}{5} \leq 0

Rewrite in standard form

\frac{3 x - 7}{x + 1} \leq 0

Identify the intervals

- 1 < x \leq \frac{7}{3}

t^{3} - 27

∣ 3 + 2 x ∣ \geq 7

x^{3} - 2 x^{2} + 3 x - 2

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

90 + x + 58 + 104 = 360

What is (x-1)/(x+1)-2/5 <= 0 ?
The solution to (x-1)/(x+1)-2/5 <= 0 is -1<x<= 7/3