Question

dau coroana si vot 5 stelute ajutatima! determinati numarul natural n stiind ca n+1 supra 12 =5 supra 3.

Answer 1

$\frac{n+1}{12}$ = $\frac{5}{3}$
(n+1) · 3= 12·5
3n+3= 60
3n=57
n=19

Answer 2

n+1/12=5/3
⇒[n+1]·3=12·5
⇒[n+1]·3=60
⇒[n+1]=60/3
⇒n+1=20
⇒n=20-1
⇒n=19;