\left \{ {{x \leq -17/4} \atop {x \leq 3}} \right. <=> x \leq -17/4" alt=" \left \{ {{4x \leq -17} \atop {2x \leq 5+1}} \right. <=> \left \{ {{x \leq -17/4} \atop {x \leq 3}} \right. <=> x \leq -17/4" align="absmiddle" class="latex-formula"> Ответ: x∈(-∞;-4,25].