Question 174590
there isnt much to solve here...the solutions are infinite.....simply choose a value for x and find y and plot the points .  For instance if {{{highlight(x =1)}}} then 1+2y=7-->2y=6-->{{{highlight(y=3)}}}
:for {{{highlight(x=0)}}}--->0+2y=7-->{{{highlight(y=7/2)}}}.  there are endless solutions(points) to this line
:
{{{graph(300,300,-10,10,-10,10,-x/2+7/2)}}}