Question

$5x - 15 < 2x + 3 + 5 \\ 8x - 5 = 5x + 1 + 5 \\ 2x + 1 \leqslant x - 7 + 5$
me ajudem ae;-;​

Answer 1

Resposta:

$5x - 15 < 2x + 3 + 5 \\ \\ 5x - 2x < 3 + 5 + 15 \\ \\ 3x < 23 \\ \\ x < \frac{23}{3}$

$8x - 5 = 5x + 1 + 5 \\ \\ 8x - 5x = 1 + 5 + 5 \\ \\ 3x = 11 \\ \\ x = \frac{11}{3}$

$2x + 1 \leqslant x - 7 + 5 \\ \\ 2x + - x \leqslant - 7 + 5 - 1 \\ \\ x \leqslant - 3.$