Question

m+n=17 n+p=15 p+m= 18

m=? n=? p=?
repede va rog
urgent

Answer 1

m+n=17
n+p=15
p+m= 18

m=17-n
p=15-n

15-n+17-n=18
32-2n=18
2n=32-18
2n=14
n=14:2
n=7
m=17-n
m=17-7
m=10
p=15-n
p=15-7
p=8

Answer 2

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