Решите уравнение

5 (3-2y) - 4 (9-y) = 3 (y+5)

14 (2 х-3) - 5 (х+4) = 2 (3 х+5) + 5 х

9 (3 х-7) + 3 (8 х-11) = 3 (9 х+8)

6 (7 х-11) - 13 (х-6) = 14 (2 х+1)

5 (3-2y) - 4 (9-y) = 3 (y+5)

15-10y-36-4y=3y+15

-10y-4y-3y=15-15+36

-17y=36

y=36 раздели на - 17 = 2,1176 ...

14 (2 х-3) - 5 (х+4) = 2 (3 х+5) + 5 х

28x-42-5x-20=6x+10+5x

28x-5x-6x-5x=10+42+20

12x=72

x=6

9 (3 х-7) + 3 (8 х-11) = 3 (9 х+8)

27x-63+24x-33=27x+24

27x+24x-27x=24+63+33

24x=120

x=5

6 (7 х-11) - 13 (х-6) = 14 (2 х+1)

42x-66-13x+78=28x+14

42x-13x-28x=14+66-78

x=2