Question

Determinati numarul a,b si c daca:a+1=12+b-12=c-1=a+b+c-12

Answer 1

a+1=12+b-12=c-1=a+b+c-12
a+1=12+b-12
a+1=b
b=a+1
c-1=b
c=b+1
c=a+1+1
a+1=a+b+c-12
b+c=13
a+1+a+1+1=13
2a+3=13
2a=10
a=10/2
a=5
b=a+1
b=5+1
b=6
c=a+1+1
c=5+1+1
c=7
a+1=12+b-12=c-1=a+b+c-12
5+1=12+6-12=7-1=5+6+7-12
6=6=6=6