![7^{-1}x-2^{-2} x\geq 2\frac{4}{7} \\\\\frac{1}{7}x*28-\frac{1}{4}x*28\geq \frac{18}{7}*28\\\\4x-7x\geq 72\\\\-3x\geq72\\\\x\leq-24 7^{-1}x-2^{-2} x\geq 2\frac{4}{7} \\\\\frac{1}{7}x*28-\frac{1}{4}x*28\geq \frac{18}{7}*28\\\\4x-7x\geq 72\\\\-3x\geq72\\\\x\leq-24](https://tex.z-dn.net/?f=7%5E%7B-1%7Dx-2%5E%7B-2%7D%20x%5Cgeq%202%5Cfrac%7B4%7D%7B7%7D%20%5C%5C%5C%5C%5Cfrac%7B1%7D%7B7%7Dx%2A28-%5Cfrac%7B1%7D%7B4%7Dx%2A28%5Cgeq%20%5Cfrac%7B18%7D%7B7%7D%2A28%5C%5C%5C%5C4x-7x%5Cgeq%2072%5C%5C%5C%5C-3x%5Cgeq72%5C%5C%5C%5Cx%5Cleq-24)
Ответ : x ∈ (- ∞ ; - 24]
5,125-5^{-1}x\\\\7,25+2x>5,125-0,2x\\\\2x+0,2x>5,125-7,25\\\\2,2x>-2,125\\\\x>-\frac{85}{88}" alt="2) 7,25+2x>5,125-5^{-1}x\\\\7,25+2x>5,125-0,2x\\\\2x+0,2x>5,125-7,25\\\\2,2x>-2,125\\\\x>-\frac{85}{88}" align="absmiddle" class="latex-formula">
Ответ: x ∈ (- 85/88 ; + ∞)