17 + 3x" alt="15 - 10x - 28 + 12x > 17 + 3x" align="absmiddle" class="latex-formula">
- 15 + 28 + 17" alt=" - 10 x + 12x - 3x > - 15 + 28 + 17" align="absmiddle" class="latex-formula">
30" alt=" - x > 30" align="absmiddle" class="latex-formula">
Ответ: х€ (-○○;-30)