Question

diferenta a doua numere este 15.Daca adaug primului numar suma lor,voi obtine insesitul celui de-al doilea numar.Afla cele doua numere.

Answer 1

$x-y=15 \\ x+x+y=6y \\ 2x+y=6y \\ 2x=6y-y=5y \\ x=y+15 \\ 2(y+15)=5y \\ 2y+30=5y \\ 5y-2y=30 \\ 3y=30 \\ y=30:3 \\ \boxed{y=10} \\ x=y+15 =10+15 \\ \boxed{x=25}$

Answer 2

a-b=15
a+(a+b)=bx6
2a+b=bx6
2a=5b
a=5b/2
5b/2-b=15
5b-2b=30
3b=30
b=10
a=(10x5):2=50:2=25