Question

Rezolvati in R ecuatia urmatoare:
$[ \frac{x+1}{2}] + [ \frac{x+2}{4}] + [ \frac{x+4}{8}] = 2$

Answer 1

⇒[4(x+1)+2(x+2)+x+4]/8=2
4x+4+2x+4+x+4=2·8
7x+12=16
7x=16-12
7x=4
x=4/7