Question

Sa se rezolve inecuatiile:
1) 2x-4 > 0
2) -2x+8 ≥ 0
3) 3x+6 < 0
4) -x+5 ≤ 0

Answer 1

1.
2x>4
x>2 ; x={3,4,5,...}
2.
-2x >=-8
-x>=-16
x={-16,-15,...,0,1,2,...}
3.
3x>-6
x<-2
x={-3,-4,-5,...}
4.
-x=<-5
x={-5,-6,-7,...}