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19000-3×[2000-4×(3000-2×33698:28):2]:11=

Răspuns :

19000-3x[2000-4x(3000-67396:28):2]:11
=19000-3x[2000-4x(3000-2407):2]:11
=19000-3x[2000-4x593:2]:11
=19000-3x[2000-1186]:11
=19000-3x814:11
=19000-222
=18778