Question

решите систему неравенств {1,2×+3,6>0 0,8×-4<0

Answer 1

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Answer 2

$\left \{ 1,2x+3,6>0 \atop 0,8x-4<0 \right.\\ \left \{ x>-\frac{3,6}{1,2} \atop x<\frac{4}{0,8} \right.\\ \left \{ x>-3 \atop x<5 \right.$
Ответ: $x\in (-3;5)$