The model below represents 4 x + (negative 4) = negative 2 x + 8. 4 long green tiles and 4 square red tiles = 2 long red tiles and 8 square green tiles. What is the value of x when solving the equation 4 x + (negative 4) = negative 2 x + 8 using the algebra tiles? x = negative 4 x = negative 2 x = 2 x = 4