studio664 studio664 12-05-2020 Mathematics contestada Which expressions are equivalent to 3(x + 3y + 2x − y )? 3(3x + 2y) and 9x + 6y 3(3x + 4y) and 9x + 12y 3(x + 4y) and 3x + 12y 3(x + 2y) and 3x + 6y