document.write( "Question 15516: x-4y=2
\n" ); document.write( "x+2y=8
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Algebra.Com's Answer #7683 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Solve the system of linear equations:\r
\n" ); document.write( "\n" ); document.write( "\"x+-+4y+=+2\"
\n" ); document.write( "\"x+%2B+2y+=+8\" Subtract the first equation from the second equation, eliminating the x term and resulting in:\r
\n" ); document.write( "\n" ); document.write( "\"6y+=+6\" Divide both sides by 6.
\n" ); document.write( "\"y+=+1\" Now substitute this value of y into either of the two original equations and solve for x. Let's use the first equation.\r
\n" ); document.write( "\n" ); document.write( "\"x+-+4%281%29+=+2\" Add 4 to both sides.
\n" ); document.write( "\"x+=+6\"\r
\n" ); document.write( "\n" ); document.write( "Solution is: (6, 1)\r
\n" ); document.write( "\n" ); document.write( "You can check this solution by substituting the x and y (6, 1) of the solution into the two equations and see that they are valid.
\n" ); document.write( "I'll leave this as an exercise for you.
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