document.write( "Question 434637: Hi! How do I solve a system of linear equation whose lines are
\n" ); document.write( "x=4
\n" ); document.write( "2x+6y=2\r
\n" ); document.write( "\n" ); document.write( "I don't understand how to solve this because line 1 is no longer an equation.
\n" ); document.write( "Hope to hear from you soon. Thank you!
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Algebra.Com's Answer #301038 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Solve:
\n" ); document.write( "\"x+=+4\" A vertical line passing through the points (4, ?)
\n" ); document.write( "\"2x%2B6y+=+2\" Substitute x = 4 and solve for y.
\n" ); document.write( "\"2%284%29%2B6y+=+2\"
\n" ); document.write( "\"8%2B6y+=+2\"
\n" ); document.write( "\"6y+=+-6\"
\n" ); document.write( "\"y+=+-1\"
\n" ); document.write( "The solution is (4, -1)
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