Question

determine o conjunto solucao das inequacoes abaixo a) 3/x - 5 <=2

Answer 1

Bom dia.

3/x-5 <= 2

3/x<= 2+5

3/x <= 7

3 <= 7x

3/7 <= x (x >= 3/7)

logo, x >= 3/7 satisfaz a desigualdade, pois 3/3/7 - 5 <=2, pois 3/3/7 = 21/3

21/3-5 <= 2

21-15/3 <= 2

6/3 <= 2

2 <= 2