Răspuns :
A+R+M=188
R=2A
M=R+13 --M=2A+13
A+2A+2A+13=188
5A=188-13
5A=175
A=175:5
A=35
R=70
M=83
R=2A
M=R+13 --M=2A+13
A+2A+2A+13=188
5A=188-13
5A=175
A=175:5
A=35
R=70
M=83
a+r + m=188
r=2a
r+13=m rezulta 2a+13=m
inlocuim :
a + 2a +2a +13 = 188
5a=175
a=35
r=70
m=83
r=2a
r+13=m rezulta 2a+13=m
inlocuim :
a + 2a +2a +13 = 188
5a=175
a=35
r=70
m=83