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afla numarul necunoscut din:[(37×a-489)×57-1968]:3+58×43=3795

Răspuns :

Bună!

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[tex][(37a-489)*57-1968]:3+58*43 = 3795 < = >[/tex]

[tex]<=> (2109a-27873-1968):3+58*43=3795 <=>[/tex]

[tex]<=> \frac{2109a-29841}{3} +2494=3795 <=>[/tex]

[tex]<=> \frac{3*(703a-9947)}{3}+2494=3795 <=>[/tex]

[tex]<=> 703a-9947+2494=3795 <=>[/tex]

[tex]<=> 703a-7453=3795 <=>[/tex]

[tex]<=> 703a=11248 = > a=16[/tex]