Question

Rezolva ecuatia 2x-5,3=0,78 si aflati x numar natural, daca 3x+1<32,02

Answer 1

2x=6,08
x=3,04
3x<31,02
x<10,34
$x\in\{0,1,...10\}$

Answer 2

2x-5,3=0,78
2x=0,78+5,3
2x=6,08
x=6,08/2
x=3,04

3·3,04+1<32,02
9,12+1<32,02
10,12<32,02

Sper ca te-am ajutat..