![image](https://tex.z-dn.net/?f=x+%3E+2.8+)
2.8 " alt="x > 2.8 " align="absmiddle" class="latex-formula">
![image](https://tex.z-dn.net/?f=+%5Cfrac%7B%28x+%2B+6%294%7D%7B4%7D++%3C+%285+-+x%294+%5C%5C+x++%2B+6++%3C++20+-+4x+%5C%5C+x+%2B+4x+%3E+20+-+6+%5C%5C+5x+%3E+14++%5C%5C+x+%3E++%5Cfrac%7B14%7D%7B5%7D++%5C%5C+x+%3E+2.8)
20 - 6 \\ 5x > 14 \\ x > \frac{14}{5} \\ x > 2.8" alt=" \frac{(x + 6)4}{4} < (5 - x)4 \\ x + 6 < 20 - 4x \\ x + 4x > 20 - 6 \\ 5x > 14 \\ x > \frac{14}{5} \\ x > 2.8" align="absmiddle" class="latex-formula">