#4) 4x+8 is same as choice 2) 4(x+2), 4) 2(2x+4), 5) 8+4x(order is not important in this case because the result stays the same), 7) 1/2(8x+16) ( divide 8 by 2 and also 16 by 2) #5) 7x+2x+6y=3(3x+2y) ( first we need to add 7x and 2x. 7x+2x equals 9x so does 3x multiplied by 3.)
