Question

gente me ajuda nessas inequacoes

a) x/5<-5

b) 2x-1<4x+5

c) 6x+1>28

d) x/2+3>12

Answer 1

A)

x/5< -5
x< -5* 5
x< -25

B)

2x-1<4x+5
-1-5< 4x-2x
-6< 2x
-6/2 < x
-3 < x

C)

6x+1>28
6x> 28-1
6x> 27
x> 27/6
x> 9/ 2

D)
x/2+3>12
x/2 > 12-3
x/2 > 9
x> 9*2
x> 18