Question

VALENDO 20 PONTINHOS!!!!!!!!!!!!!!!!!!!!!!!

Calcule as inequações:

a)2x+8 menor que 0

b)-2 (3x+1)+ 3(x-1) maior que 0

c)2(x-1)+3(-x-4)≤12

Answer 1

olá, boa noite. VqV


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

b)-2 (3x+1)+ 3(x-1) > 0
-6x -2 + 3x -3 > 0
-3x > 5
x < -5/3


c)2(x-1)+3(-x-4)≤12
2x -2 -3x - 12 ≤ 12
-x ≤ 12 +14
x ≥ -26


att Jhonny