document.write( "Question 134231: y= 3x-4
\n" ); document.write( "y= -2x+1
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Algebra.Com's Answer #98158 by nycsharkman(136)\"\" \"About 
You can put this solution on YOUR website!
You said word problem. Where is the word problem?\r
\n" ); document.write( "\n" ); document.write( "You have a system of linear equations in two variables:\r
\n" ); document.write( "\n" ); document.write( "y= 3x-4
\n" ); document.write( "y= -2x+1\r
\n" ); document.write( "\n" ); document.write( "What are the two variables? The two variables are x and y. We must find their value.\r
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\n" ); document.write( "\n" ); document.write( "You are blessed to have both equations expressed in terms of y.\r
\n" ); document.write( "\n" ); document.write( "Since we know BOTH equations for y, equate them and solve for x.\r
\n" ); document.write( "\n" ); document.write( "3x - 4 = -2x + 1\r
\n" ); document.write( "\n" ); document.write( "3x + 2x = 4 + 1\r
\n" ); document.write( "\n" ); document.write( "5x = 5\r
\n" ); document.write( "\n" ); document.write( "x = 5/5\r
\n" ); document.write( "\n" ); document.write( "x = 1\r
\n" ); document.write( "\n" ); document.write( "We just found the value of x.\r
\n" ); document.write( "\n" ); document.write( "Now, plug x = 1 into EITHER equation and simplify.\r
\n" ); document.write( "\n" ); document.write( "I choose y = 3x - 4.\r
\n" ); document.write( "\n" ); document.write( "y = 3(1) - 4\r
\n" ); document.write( "\n" ); document.write( "y = 3 - 4\r
\n" ); document.write( "\n" ); document.write( "y = -1\r
\n" ); document.write( "\n" ); document.write( "The solution for this system of equations is the point (1, -1).\r
\n" ); document.write( "\n" ); document.write( "What does the point (1, -1) really mean?\r
\n" ); document.write( "\n" ); document.write( "The point (1, -1) indicates the location where the two equations meet or cross each other on the xy-plane after they are graphed.\r
\n" ); document.write( "\n" ); document.write( "Did you follow?\r
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