Question

Suma a trei numere este 82 stiind ca l+ll=45 si ll+lll=53 ,sa se afle numerele

Answer 1

a,b,c-nr.
a+b+c=82
a+b=45 =>a=45-b
b+c=53 =>c=53-b
45-b+b+53-b=82
-b+b-b=82-45-53
-b=-16 |×(-1)
b=16
a=45-b
a=45-16
a=29
c=53-b
c=53-16
c=37