Question

Suma a 5 numere consecutive este 30

Answer 1

a + (a+1) + (a+2)+(a+3)+(a+4)= 30
5a+10 = 30
5a=30-10=20
=>a=20/5 = a
a=4
a+1=5
a+2=6
a+3=7
a+4=8
numerele sunt - 4 5 6 7 8

Answer 2

a+(a+1)+(a+2)+(a+3)+(a+4)=30
a+b+c+d+e=30-(1+2+3+4)=30-10=20
20/5=4
a=2
b=3
c=4
d=5
e=6

Probă=2+3+4+5+6=20