Question 18651
Well, you it's already in Slope-intercept form, that makes it a little easier.
For the first line,
{{{y=x-3}}}
-3 is your y-intercept
1 is your slope
Second line:
{{{y=2x+1}}}
1 is your y-intercept
2 is your slope
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Then you place those points on a graph
The place where the two lines intercect is your solution
{{{graph(500,500,-10,10,-10,10,x-3,2x+1)}}}
In this case, the intercection point is (-4,-7)
So, on the line, you write (-4,-7) and on the graph grid, you draw the graph.
Hope this helps!