-3.9*2.8 (знак пропустила исправь)26.6)/(-3.2)-2.1
(-3.9*2.8+26.6)/(-3.2)-2.1=(-10.92+26.6)/(-3.2)-2.1=15.68/(-3.2)-2.1=-15.68/3.2-2.1=-4.9-2.1=-7
-3.9*2.8 (знак пропустила исправь)26.6)/(-3.2)-2.1
(-3.9*2.8+26.6)/(-3.2)-2.1=(-10.92+26.6)/(-3.2)-2.1=15.68/(-3.2)-2.1=-15.68/3.2-2.1=-4.9-2.1=-7