Решите уравнение : 1-3y 3-y ____ __ ___ = 0 11 5

Question

Решите уравнение :

1-3y 3-y

____ __ ___ = 0

11 5

Answer 1

5(1-3y)-11(3-y)=0

5-15y-33+11y=0

-28-4y=0

-4y=28

y=-7

Answer 2

(5)         (11)

1-3у  --  3-у            5-15у-33+11у

____      ____   =   ______________    ;

11             5                      55

 -15у+11у= -5+33

 -4у= 28

у= - 7