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rezolvare a+b+c=340 a=3xb a=c:2

Răspuns :

a+b+c=340
a=3b
[tex]a = \frac{c}{2} = > c = 2a[/tex]
*Inlocuim in a+b+c=340
3b+b+2a=340
4b+2×3b=340
10b=340
[tex]b = \frac{340}{10} = > b = 34[/tex]
a=3b=3×34=102
c=2a=2×102=204