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232+[48x25+(540xa-82x5)x10]:100=797

Răspuns :

232+[48*25+(540*a-82*5)*10]/100=797  |-232
[1200+(540*a-410)*10]/100=565
1200+(540*a-410)*10=56500  |-1200
5400*a-4100=55300 |+4100
5400*a=59400  |/5400
x=11