Question

Daca radu i-ar da lui Mihai 37 nuci,cei doi ar avea nr.egal.Cate nuci are radu,daca mihai are 50.Cate au impreuna?

Answer 1

x- nucile lui Radu
y- nucile lui Mihai
X-37=y+37
y+37=50+37=87
x=87+37=124
124+50=174

Verificare:
124-37=87
50+37=87
87=87

R/s: Radu are 124 nuci
Impreuna au 174 nuci