## Elementary Technical Mathematics

$y-5x=12$ $y-5x+5x=12+5x$ $y=\underset\uparrow5x+12$ $\ \ \ \ \ \$slope $5x-y=-6$ $5x-y-5x=-6-5x$ $-y\times-1=(-5x-6)\times-1$ $y=\underset\uparrow5x+6$ $\ \ \ \ \ \$slope The slope is 5 for both equations so the lines are parallel.