[(38xa+120):25x54]-980=100. Va rog am nevoie de ajutor.

Răspuns :

(38×a+120):25×54=100+980=1080

(38a+120):25=1080:54=20

38a+120=20×25

38a+120=500

38a=500-120

38a=380

a=380:38

a=10

Proba:[(38×10+120):25×54]-980=100

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