Question

Urgent,va rog frumos!

Answer 1

46)x-1/3x+1≤0⇒x-1≤3x+1⇒x-3x≤1+1⇒-2x≤2⇒x≤2/-2⇒x≤-1
47)2x+1/x-3<0⇒2x+1<x-3⇒2x-x<-1-3⇒x<-4
48)f(x)=-2x+4
     g(x)=x+3
f(x)=g(x)⇒-2x+4=x+3⇒-2x-x=-4+3⇒-3x=-1⇒x=-1/-3⇒x=-1/3
49)f(x)=2x-1
      g(x)=x+3⇒
f(x)=g(x)⇒2x-1=x+3⇒2x-x=1+3⇒x=4
sucees