Question

Determină numerele a b c știind că :

a+b=300 b+c=500 a+b+c=600​

Answer 1

a+b+c=600​

a+b=300 => c = 600 - 300 = 300

b+c=500 => a = 600 - 500 = 100

a+b=300 => b = 300 - 100 = 200

Answer 2

Pai...

a+b+c=600

a+b=300

b+c=500

deci:

a+b=300⇒c=600-300⇒c=300

b+c=500⇒a=600-500⇒a=100

a+b=300=>b=300-100⇒b=200

deci:

a+b+c=600

100+200+300=300+300=600