👤

Afla numerele a,b,c stiind că :a+b=300,b+c=500si a+c=400.

Răspuns :

A+b+b+c+a+c=1200

2a+2b+2c=12002:2

a+b+c=600

c=600-300=300

b=600-400=200

a=600-500=100
a=100
b=200
c=300

500-300=200(b)
300-200=100(a)
400-100=300(c)