Question

Resolvendo a inequação 9.(x -- 2) --5.(x -- 3) < 1, obtemos:

a) x < 1
b) x > 1
c) x < 3
d) x > --3
e) x < 4

Answer 1

Resposta:

9.(x-2) - 5. (x-3) < 1

9x - 18 - 5x + 15 < 1

4x - 3 < 1

4x < 3 + 1

4x < 4

x < 4/4

x < 1