Question

27. Resolva, em R, as inequações.
a) 3x – 12 < 0
b) 5(-x + 1) + 2(3x - 4) > -1
-x+ 3 2x + 5
c)-x+3/2 < 2x+5/3​

Answer 1

Resposta:

a) 3x - 12 < 0

3x < 12

x < 12/ 3

x < 4

b) 5 (- x + 1) + 2 (3x - 4) > - 1

- 5x + 5 + 6x - 8 > - 1

- 5x + 6x > - 1 - 5 + 8

x > 2