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Daca a+b=135, a+c=200 Aflati a+b+c

Răspuns :

200-135=65
b=65
a+65=135
a=70
2a+b+c=335(135+200)
335-70=255
a+b+c=255
2a+b+c=135+200
2a+b+c=335

(a+c)-(a+b)=
200-135=65
a=65
a+b=135
b=135-65
b=70

a+c=200
c=200-65
c=135
a+b+c=65+70+135=270