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Ajutatima
Deschide acolada ptrata (80-6x7)x3+6 inchide patrata x2-100 inchide acolada x2+50
x -este ori


Răspuns :

[(80-6*7)*3+6]*2-100]*2+50=
[(80-42)*3+6]*2-100]*2+50=
[38*3+6]*2-100]*2+50=
[120*2-100]*2+50=
140*2+50=
280+50=330