document.write( "Question 465385: how to solve each system by graphing?
\n" ); document.write( "problems:
\n" ); document.write( "1) y= 7x + 4 and y= -x - 4
\n" ); document.write( "2) 2x + y = 3 and x - 2y = 4
\n" ); document.write( "3) x - 3y = - 9 and x - 3y = 6
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Algebra.Com's Answer #318938 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
They're straight lines, so you need 2 points for each equation.
\n" ); document.write( "Pick values for x and find y.
\n" ); document.write( "Plot the 2 points.
\n" ); document.write( "Draw a line thru them.
\n" ); document.write( "The solution of the system is where the lines intersect.
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