Three students simplified the expression 2x- 3(y-2x) +-5times -2y.
Amber -4y + 7y
Butch 4x + 7y
Carl 8x + 7y

Who is correct? Explain the error the other students made

Respuesta :

Carl is right because simplifying it gets us: [tex]2x-3y+6x+10y=8x+7y[/tex]