[(215+7x13-8874:29)x27+3]x7-20=

Răspuns :

Răspuns:

1

Explicație pas cu pas:

[(215+7×13-8 874:29)×27+3]×7-20=

[(215+91-306)×27+3]×7-20=

[(306-306)×27+3]×7-20=

(0×27+3)×7-20=

(0+3)×7-20=

3×7-20=

21-20=

1