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[tex] \left \{ {{ \frac{3-2x}{15} \leq \frac{x-2}{3} + \frac{x}{5} } \atop { \frac{1-3x}{12} \geq \frac{5x-1}{3} - \frac{7x}{4} }} \right. [/tex]
[tex] \left \{ {{ \frac{3-2x}{15} \leq \frac{x-2}{3} + \frac{x}{5} } \atop { \frac{1-3x}{12} \geq \frac{5x-1}{3} - \frac{7x}{4} }} \right. [/tex]
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{3-2x≤5x-10+3x⇒8x+2x≥3+10⇒10x≥13⇒x≥1,3{1-3x≥20x-4-21x⇒-x+3x≤1+4⇒2x≤5⇒x≤2,5
x∈[1,3;2,5]