Question

Rezolva inecuatia! Help me

Answer 1

Răspuns:

a)4x-6≤10

4x≤10+6

4x≤16

x≤4

x∈(-∞;4]

b)2-7x=12

-7x=12-2

-7x=10

x=-10/7

e){x≥3

{x+4<0

{x≥3

{x<-4

x ∈Ф (x apartine multimii vide)

d)7x-3(2x-6)≥4-3(5x-1)

7x-6x+18≥4-15x+3

x+18≥7-15x

x+15x≥7-18

16x≥-11

x≥-11/16

x∈[-11/6;+∞)

bafta