Answer:
5
Explanation:
25x-5y=25
We want to solve for y to get the equation in slope intercept form
Subtract 25x from each side
25x-25x-5y=-25x +25
-5y = -25x+25
Divide by -5 on each side
-5y/-5 = -25x/-5 +25/-5
y = 5x -5
The slope is 5 and the y intercept is -5
We want a line parallel. Parallel lines have the same slope.