A. Adding 8x to both sides wouldn't cancel anything out. B. Adding 15 to both sides will cancel out 15 making it easier to solve for x. C.Adding 3 to both sides will not cancel anything out. D. Adding 2x to both sides won't cancel anything out. </span>
The slope intercept form would be y= -1/2x + 1 and to get it into standard form all you have to do is move the -1/2 x to the other side, making it 1/2x + y = 1