Question

ABC va rog frumos dau coroana stele inima abonare​

Answer 1

Explicație pas cu pas:

x:13=1 r 1

x=14

x:13=2r2

x=28

x:13=3r3

x=42

x:13=4r4

x=56

x:13=5r5

x=70

x:13=6r6

x=82

.. .......

x:15=4r2

r=2c

x=62

......c6 r4

x=94

.....c8 r6

x=126

.....c10 r 8

x=158....

........ .. . . .

x:2009=c r

10r=c

c1 r 10. x=2019

c2 r 20. x=2009*2+20=4038

........**și tot așa**;)