Question 1210547
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" Solve This Graphically  3x+y=2 "  is mathematically  ILLITERATE  way to formulate this assignment.



A true  Math way is to say  " make a plot of this straight line ",


or to say  "Express  'y'  and make a plot of  'y'  as a function of  'x' ".



By the way, for making plots, there is a beautiful web-site 
www.desmos.com/calculator


It has free of charge plotting tool for common use.
So, go there, print your function/equation, and you will get the plot in the next instance.



We live in the 21-th century, so it is useful to know the available technology.