Question

A+b+c=30 ; a, B, c sunt numere consecutive pare;
CU METODA GRAFICA

Answer 1

a |--|

b |--|+2

c |--|+2+2

a+a+2+a+2+2=30

3×a+6=30

Scadem 6

3×a=24

Impartim la 3

a=8

b=8+2

b=10

c=10+2

c=12

Answer 2

a+b+c=30

a. |....|

b. |....|+2|

c. |....|+4 | } in total 30

30-2-4=24 ( egalarea părților )

24:3=8 ( a )

8+2=10 ( b )

8+4=12 ( c )

v : 8+10+12=30