b) \( \left.\begin{array}{rl}\frac{3(1-2 x)}{5} & >\frac{1}{2} \\ 4 x-5 & \leq \frac{x-1}{3}\end{array}\right\} \)
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To solve the first inequality \( \frac{3(1-2x)}{5} > \frac{1}{2} \), start by multiplying both sides by 5 to eliminate the fraction: \( 3(1 - 2x) > \frac{5}{2} \). Distributing gives \( 3 - 6x > \frac{5}{2} \). Next, subtract 3 from both sides: \( -6x > \frac{5}{2} - \frac{6}{2} \Rightarrow -6x > -\frac{1}{2} \). Dividing by -6 reverses the inequality: \( x < \frac{1}{12} \). Now, let's tackle the second inequality \( 4x - 5 \leq \frac{x - 1}{3} \). Start by multiplying through by 3 to clear the fraction: \( 12x - 15 \leq x - 1 \). Next, bring \( x \) to the left: \( 12x - x - 15 \leq -1 \Rightarrow 11x - 15 \leq -1 \). Adding 15 to both sides gives \( 11x \leq 14 \). Finally, divide by 11: \( x \leq \frac{14}{11} \). So, the solutions are \( x < \frac{1}{12} \) and \( x \leq \frac{14}{11} \). The final answer is \( x < \frac{1}{12} \).