Răspuns :
a). -11+3x<1
3x<12
x<4=> x€{..., -1,0,1,2,3}.
b).-7-2x<11
-2x<18/:(-2)
x>9 => x€{10,11,12...}.
3x<12
x<4=> x€{..., -1,0,1,2,3}.
b).-7-2x<11
-2x<18/:(-2)
x>9 => x€{10,11,12...}.
3x<=12
x<=12÷3
x<=4 adica x aparine intervalului {minus infinit ; patru}
b
-2x<4
x>-2
adica x apartine{ minus doi ; plus infinit}
x<=12÷3
x<=4 adica x aparine intervalului {minus infinit ; patru}
b
-2x<4
x>-2
adica x apartine{ minus doi ; plus infinit}
