Răspuns:
a)
[tex]5 - 15x20 \\ 5 - 300x \\ 5(1 - 60x)[/tex]
b)
[tex] - 4x + 10 \geqslant 0 \\ - 4x \geqslant - 10 \\ x \leqslant \frac{5}{2} [/tex]
c)
[tex] - 7 + 4.9x > 0 \\ 4.9x > 7 \\ x > \frac{10}{7} [/tex]
d)
[tex]8x - 16 < 0 \\ 8x < 16 \\ x < 2[/tex]
e)
[tex] - 1 .9 - 5.7x \leqslant 0 \\ - 5.7x \leqslant 1.9 \\ x \geqslant - \frac{1}{3} [/tex]
f)
[tex] \sqrt{2} - \sqrt{8}x < 0 \\ \sqrt{2} - 2 \sqrt{2}x < 0 \\ - 2 \sqrt{2}x < - \sqrt{2} \\ x > \frac{1}{2} [/tex]
Vă rog coroană...am stat mult să scriu
