Ответ:

Пошаговое объяснение:

9*(x - 4) = 9*45 + 5*(2 + 4x)

9x - 36 = 405 + 10 + 20x

9x - 36 = 415 + 20x

9x - 20x = 415 + 36

-11x = 451

x = -451 : 11

x = -41

==============

1*(8 - y) + 2*( 5 - 4y) = 3*(y + 6)

8 - y + 10 - 8y = 3y + 18

-9y + 18 = 3y + 18

-9y - 3y = 18 - 18

-11y = 0

y = 0

=========

6*(9x - 5) - 4*(3 + 5x) - 3*(8x - 2) = 12*2

54x - 30 - 12 - 20x - 24x + 6 = 24

10x -36 = 24

10x = 24 + 36

10x = 60

x = 60 : 10

x = 6