Write an equation for a line parallel to 2y = 4x - 10

Divide the equation by two to get y = 2x - 5This shows that the gradient of the line is 2. Any other equation with the gradient equal to 2 (the x coefficient) when the y coefficient is 1.e.g. y = 2x +12 or y = 2x - 3 or y = 2x +4