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(2) Rezolvați în Zinecuațiile:
a 2(x-1)<-6;
d 2(x+8)≤-10;
g 3+2(x+2) < 5;
b 3(x+1)<-18;
e 5(x-1) <0;
h 1+4(x-1)<-7;
c 4(x+2)≥-8;
f 2(x+5)+3<-9;
i 5(2+3x) <-5.


Răspuns :

Răspuns:

a) 2x - 2 < -6

2x < -4

x < -2

d) 2x + 16 <_ -10

2x <_ -26

x <_ -13

g) 3 + 2x + 4 < 5

2x < -2

x < -1

b) 3x + 3 < -18

3x < -21

x < -7

e) 5x - 5 < 0

5x < 5

x < 1

h) 1 + 4x - 4 < -7

4x < -4

x < -1

c) 4x + 8 >_ -8

4x >_ -16

x >_ -4

f) 2x + 10 + 3 < -9

2x < -22

x < -11

i) 10 + 15x < -5

15x < -15

x < -1