Question

resolva as inequações a) X/2 + X < X/3+14

B) X+10_> - X/4

Answer 1

$a) \frac{x}{2} + x < \frac{x}{3} + 14 \\ \frac{3x}{6} + \frac{6x}{6} < \frac{2x}{6} + \frac{84}{6} \\ 9x < 2x + 84 \\ 7x < 84 \\ x < \frac{84}{7} \\ x = 12 \\ b)x + 10 \geqslant - x + 4 \\ 2x \geqslant - 6 \\ x \geqslant \frac{ - 6}{2} \\ x \geqslant - 3$