Answer: 1: x = 2y - 1 This equation shows that the value of x is always 2 times the value of y minus 1.
2: y = 3x + 3 This equation shows that the value of y is always 3 times the value of x plus 3.
3: y = (x/4) - 1 This equation shows that the value of y is always the value of x divided by 4 minus 1.
4: y = x-5 This equation shows that the value of y is always the value of x minus 5.