Question

Помогите, пожалуйста,дам 100 баллов​

Answer 1

Пошаговое объяснение:

№1

1/24х - (1/3х + (-2/9х - (-4/9х + (-5/12х)))) =

1/24х - (1/3х + (-2/9х - (-4/9х - 5/12х))) =

1/24х - (1/3х + (-2/9х + 4/9х + 5/12х)) =

1/24х - (1/3х - 2/9х + 4/9х + 5/12х) =

1/24х - 1/3х + 2/9х - 4/9х - 5/12х =

3/24х - 24/72х + 16/72х - 32/72х - 30/72х =

(3-24+16-32-30)/72х = (-67)/72х = -67/72х

№2

-16 11/36у + (-5 4/9у - (-7 3/8у + (-10 5/18у))) =

-16 11/36у + (-5 4/9у - (-7 3/8у - 10 5/18у)) =

-16 11/36у + (-5 4/9у + 7 3/8у + 10 5/18у) =

-16 11/36у - 5 4/9у + 7 3/8у + 10 5/18у =

-16 22/72у - 5 32/72у + 7 27/72у + 10 20/72у =

-21 54/72у + 7 27/72у + 10 20/72у =

-14 27/72у + 10 20/72у = -4 7/72у