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nikdorinn [45]
3 years ago
7

Suma dintre treimea unui numar si numarul insusi este egala cu 28 .afla numarul.

Mathematics
1 answer:
abruzzese [7]3 years ago
7 0
Let be x the number;

We have (1/3)*x + x = 28 ;

x/3 + 3x/3 = 84/3 ;

4x = 84;

x = 84 ÷ 4 ;

x = 21.
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