21. Which of the following is equivalent to 3x - 4y = 6? O
y=-x
3
y=--X
y = $x+2
3
О
y =

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2