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15-2×15+3×[100-(3×15+2×15)-150:15]=

Răspuns :

Htr444

15-2×15+3×[100-(3×15+30)-150÷15]=

=15-30+3×(100-75-15)=

=15-30+3×15=

=15-30+45=

=-15+45=

=30
15 - 2 × 15 + 3 × [ 100 - ( 3 × 15 + 2 × 15 ) - 150 : 15 ] =

15 - 30 + 3 × [ 100 - ( 45 + 30 ) - 10 ] =

15 - 30 + 3 × ( 100 - 75 - 10 ) =

15 - 30 + 3 × ( 25 - 10 ) =

15 - 30 + 3 × 15 =

15 - 30 + 45 =

- 15 + 45 = 30

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