Question

Rezolvati inecuatiile: a)3x+7>sau=,x apartineZ b) 15-2y>,y apartine N C) 2(1-x)<3(x+2)+1,x apartine Z d) 3(2t+1)-4(t-2)

Answer 1

a)3x+7>x   7>-3x+x   7>-2x   x<-3,5
b)15-2y>y    15>2y  y<7,5
c)2(1-x)<3(x+2)+1    2-2x<3x+6+1    2-2x<3x+7   2-7<3x+2x  -5<6x  x>-5/6
d)u e dat continutul pina la capat