Question

suma a doua numere este 150,iar diferenta celor doua numere este 38.determina cele doua numere

Answer 1

a+b=150
a-b=38
150-38=112
112:2=56(b)
56+38=94(a)
v:56+94=150

Answer 2

a+b=150
a-b=38 rezulta ca a=b+38
algebric avem:
b+38+b=150
2b=150-38
2b=112
b=112:2
b=56
a=56+38=94
Verific: 94+56=150 (suma)

Grafic avem:
a l------l+38   }suma =150
b l------l 
(150-38):2=112:2=56 (b)
56+38=94 (a)