Question

es de ecuaciones de primer grado ayudaaaaa.....​

Answer 1

Respuesta:

X = 3

Explicación paso a paso:

m^2 X + n(m - n ) = ( m - n ) (3m + 4n ) + n^2 X

m^2 X -  n^2 X = ( m - n ) (3m + 4n ) -  n(m - n )

X( m^2 - n^2 ) = (m - n ) [ 3m + 4n -n ]

X ( m + n ) ( m - n ) = (m- n ) ( 3m + 3n )

X ( m + n ) ( m - n ) = ( m - n ) [ 3( m+n) ]

X =3 [ (m-n) (m+n) ] / [ ( m+n) (m-n)]

Luego, X = 3

X = 3