Решения неравенпства 7×-3>9×-8

Question

Решения неравенпства 7×-3>9×-8

Answer 1

7x-3>9x-8
7x-9x>-8+3
-2x>-5  |*(-1)
2x<5<br>x<<img src="https://tex.z-dn.net/?f=+%5Cfrac%7B5%7D%7B2%7D+" id="TexFormula1" title=" \frac{5}{2} " alt=" \frac{5}{2} " align="absmiddle" class="latex-formula">
x<<img src="https://tex.z-dn.net/?f=2%2C5" id="TexFormula2" title="2,5" alt="2,5" align="absmiddle" class="latex-formula">

x∈(-∞;2,5)

Answer 2

7x-9x>-8+3
-2x>-5     ×(-1)
2x<5<br>x<2,5<br>Ответ (-∞;2,5)