Dnicodim252ask
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a×b=36 b×c=13 a-c=6 a, b, c?​

Răspuns :

Msmelimelloask

(I):a×b=36

(II):b×c=13

(III):a-c=6

Daca impartim expresia (I) la (II) avem:

(a×b)/(b×c)=36/13

a/c=36/13

a=36×c-13

=>36×c-13-c=6

35×c=18

c=18/36=9/18=1/2

a=36×1/2-13=18-13=5

b=36/a=36/5

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