You can put this solution on YOUR website! 3Y+7X+7=9+7x
3Y=7X-7X+9-7
3Y=2
Y=2/3 THIS IS THE Y INTERCEPT.
THE SLOPE=0
THERE IS NO X INTERCEPT AS THIS LINE IS A HERIZONTAL LINE THROUGH Y=2/3. (graph 300x200 pixels, x from -6 to 5, y from -10 to 5, Y = 2/3).