You can put this solution on YOUR website! To find the slope and y-intercept, write your equation in the form y = mx + b, where m = the slope and b = y-intercept.
15x + 9y = –27
9y = -15x - 27
y = (-15x - 27)/9
y = (-5/3)(x) - 3
The slope is (-5/3) and the y-intercept is -3.