Question

7 xY+1985-y x2=3

Help me

Answer 1

\(7y+1985-2y=3\) 

\(\Leftrightarrow5y=3-1985=-1982\) 

\(\Leftrightarrow y=-396,4\)

Answer 2

X LÀ DẤU NHÂN À?

Answer 3

     7 x y +1985 - y x 2 = 3

=> (7 x y + y x 2)+1985=3

=>5 x y +1985             =3

=>5 x y                       = 3 - 1985 

=>5 x y                      = - 1982

=> y                          = -1982 : 5

=>y                           = -396,4

Answer 4

\(y=396,4\)nha bạn.

Answer 5

nhầm
\(y=-396,4\)
sorry.