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Ac8632922
a fost răspuns

Rezolvati in R inecuatile a)3,6+2x<9x+5,7; b)11(2x-3)>22x+13

Răspuns :

a) 2x-9x<5,7-3,6
-7x<2,1        inmultim -1
7x>-2,1
x>-2,1/7
x>-0,3

b) 22x-33>22x+13
22x-22x>33+13
x∈∅
3.6+2x<9x+5.7
2x-9x<5.7-3.6
-7x<2.1
x<2.1/(-7)
x<-0.3
  

11(2x-3)>22x+13
22x-33>22x+13
22x-22x>13+33
x multimea vida

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