Question

m+n=17
n+p=15
p+m=18
Care sunt valorile lui m, n, p

Answer 1

m+n+n+p+p+m=17+15+18
2m+2n+2p=50
2x(m+n+p)=50
m+n+p=50:2
m+n+p=25
17+p=25
p=8
m+15=25
m=10
n+18=25
n=7