Question

Aflati numarul natural x,stiind ca:
a)9/x=x+1/10
b)x/12=50/x+1
c)x+1/28=15/x
d)13/x+1=x/50

Answer 1

Răspuns

Explicație pas cu pas:

a) x(x+1)=9*10

x=9

b) x(x+1)=50*12

x(x+1)=600=24*25

X=24

c) x(x+1) =28*15

x(x+1)=420=20*21

x=20

d) x(x+1)=13*50

x(x+1)=650=25*26

x=25