Question

Cum calculez 3x-5<4, unde x apartine N, si 3 supra x-2=0,6 unde x apartine Q.
Ajutati-ma va rog frumos sa aflu x. 

Answer 1

[tex]a)3x-5<4\\ 3x<4+5\\ 3x<9\\ x<9:3\\ x<3\\ x\in\{0,1,2\}\\ b) \frac{3}{x-2} =0,6\\ \frac{3}{x-2}= \frac{6}{10}\\ x-2= \frac{3\cdot 10}{6} \\ x-2=5\\ x=5+2\\ x=7\in Q[/tex]