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Daca a+b=162, b+c=354,a+c=408 afla valorile pt a b c

Răspuns :

Alexandravert
a+b=162
b+c=354
a+c=408
_______
2a+2b+2c=162+354+408
2(a+b+c)=924
a+b+c=924/2
a+b+c=462
a+b =162=>c=462-162=300
b+c =354=>a=462-354=108
a+ c =408=>b=462-408=54
Miaaaasd
a + 2 b + c = 516
408 + 2 b = 516 - 408
2b = 108 : 2
b = 54
a + b = 162
a + 54 = 162 - 54
a = 108
a + c = 408
108 + c = 408 - 108
c = 300

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