Question

- Suma a 3 nr consecutive este 519. Află fiecare număr . Cu metoda grafica

Answer 1

a-------------
a+1--------------
a+2---------------
a+a+1+a+2=519
a*3=519-1-2
a*3=516
a=516:3
a=172
172+173+174=519

Answer 2

x+x+1+x+2=519. x=|---|. x+1=|---|+1|. x+2=|---|+2|. 519-1-2=516. 516:3=172 (x). 172+1=173(x+1). 172+2=174 (x+2).