Question

sa se afle nr a,b,c,a fiindcă a+b=380,b+c=413,a+c=301

Answer 1

Buna!

Uite aici raspunsul:
a+b=380⇒a=380-b
b+c=413⇒c=413-b
a+c=301⇔380-b+413-b=301⇒793-2b=301⇒793-301=2b⇒492⇒b=246
a+246=380⇒a=380-246⇒a=134
246+c=413⇒c=413-246⇒c=167