Question

DAU COROANA !!!!!! am nevoie de ajutor va roooog​

Answer 1

a) -5x-6<-2x

-3x<6

x<2⇒x∈{-∞, ..., -4, -3}

b) -x+5≤2x+20

-3x≤15

x≤-5⇒x∈{-∞, ..., -6, -5}

c) 4x+3≥-2x-15

6x≥-18

x≥-3⇒x∈{-3,-2,-1}

d) x-4>2x+1

-x>5

x<-5⇒x∈{-∞, ... ,-7,-6}

e)2(x-1)+1<-9

2(x-1)<-10

x-1<-5

x<-4⇒x∈{-∞, ... ,-6,-5}

f) 5(x+2) -1≥-1

5(x+2)≥0

x+2≥0

x≥-2⇒x∈{-2,-1}