Question

Решите пожалуйста номер 1047 под номером 3) и 4)

Answer 1

3)
$\frac{9-5x}{2} - \frac{4x}{3} \ \textless \ x- \frac{3x-1}{6} \\\\ \frac{3(9-5x)}{6} - \frac{8x}{6} \ \textless \ \frac{6x}{6} - \frac{3x-1}{6} \\\\ 27-15x-8x\ \textless \ 6x-3x+1 \\\\ -15x-8x-6x+3x\ \textless \ 1-27 \\\\ -26x\ \textless \ -26 \\\\ x\ \textgreater \ 1$

4)
$\frac{5x-3}{4} - \frac{11x}{6} \geq \frac{2(1-x)}{3} + \frac{3x}{2} \\\\ \frac{3(5x-3)}{12} - \frac{22x}{12} \geq \frac{8(1-x)}{12} + \frac{18x}{6} \\\\ 3(5x-3) - 22x \geq 8(1-x) +18x\\\\ 15x-9- 22x \geq 8-8x+18x\\\\15x-22x+8x-18x \geq 8+9 \\\\ -17x \geq 17 \\\\ x \leq -1$