You can put this solution on YOUR website! If this is a linear equation then:
2x+5y=25 subtract 2x from both sides.
5y=-2x+25 divide by 5.
y=-2x/5+25/5 reduce 25/5
y=-2x/5+5 line equation. (graph 300x200 pixels, x from -6 to 15, y from -10 to 10, -2x/5 +5).