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9000-(820-148×3÷2)÷2-139

Răspuns :

9000-(820 -222) :2 -139 
=9000 - 598 :2 - 139
=9000 - 299 -139
=8562
9000-(820-148*3:2):2-139=
=9000-(820-444:2):2-139=
=9000-(820-222):2-139=
=9000-598:2-139=
=9000-299-139=
=8701-139=
=8562

sper ca te-am ajutat!!!