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a+b+c=48 a=2b c=a+b a,b,c?

Răspuns :

Metoda figurativa,

a + b + c = 48

a = 2b

c = a + b

a |---|---|
b |---|
c |---|---|---| } 48

3 + 2 + 1 = 6 ( segmente egale )

48 : 6 = 8 ( b )

8 × 2 = 16 ( a )

8 × 3 = 21 ( c )
a|---|---|     }
b|---|         } 48
c|---|---|---|}

48:6=8(b)
8x2=16(a)
8x3=24(c)