Question 51710
I'll solve the second and you can solve the first as the process is exactly the same -- always solve for y.  By adding y to both sides in the first equation of the second problem, we get {{{x=y+3}}}.  Now subtract 3 from both sides to get{{{y=x-3}}}.  For the second equation, add 6x to both sides to get {{{6y=6x+17}}}.  Now divide both sides by 6 to get {{{y=x+17/6}}}.  Because both equations have the same slope of 1, we know they will be parallel lines. Graphing both lines: {{{graph(300,300,-5,5,-10,10,x-3,x+17/6)}}}