To answer you get the same denominator so multiply both denominators with each other and do the same with the top so 25 will be at both bottoms and well 15/25 and 8/25. Then solve
Standard form: Ax+By=C first put in slope-intercept form: slope = (0+5)/(6-3) = 5/3 pick point D: 0 = 5/3(6)+b -> b= -10 slope-intercept form: y=(5/3)x-10 multiply both sides by 3: 3y=5x-30 put in standard form: 5x-3y=30