Question

x + 3y = 9
4. x - 2y = -1
.ayuda :,c

Answer 1

Explicación paso a paso:

x + 3y = 9 4x - 2y = -1

x = 9 - 3y 4( 9 - 3y) = - 1

36 -12y = - 1

36 + 1 = 12y

37 = 12y

37/12 = y

x = 9 - 3y

x = 9 - 3( 37/12)

x = - 1/4