Question

Aflati valoarea numerica a lui m, n, p in ipoteza: m+ n=30;n+p=38; m+ p=32. Multumesc.

Answer 1

n=38-p 
m=32-p
m+ n=30
32-p+38-p=30
70-2p=30
2p=40
p=20=>m=12=>n=18