Question

Resolva:
A 2x + 8 < 0

B 5x - 16 < 13

C - x - 10 < - 7

Answer 1

a) 2x + 8 < 0
    2x < 8
      x < 8/2
      x < 4

b) 5x - 16 < 13
    5x < 29
    x < 29/5 = 5,8

c) -x - 10 < -7
   -x < 3
    x > -3

Espero ter ajudado!!