document.write( "Question 892924: Solve the system of equations by substitution. What is the solution for x?\r
\n" ); document.write( "\n" ); document.write( "2x + y = 1
\n" ); document.write( "4x + 2y = -1
\n" ); document.write( "

Algebra.Com's Answer #540919 by Fombitz(32388)\"\" \"About 
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\n" ); document.write( "1.\"2x+%2B+y+=+1\"
\n" ); document.write( "2.\"4x+%2B+2y+=+-1\"
\n" ); document.write( "From eq. 1,
\n" ); document.write( "\"y=1-2x\"
\n" ); document.write( "Substitute into eq. 2,
\n" ); document.write( "\"4x%2B2%281-2x%29=-1\"
\n" ); document.write( "\"4x%2B2-4x=-1\"
\n" ); document.write( "\"2=-1\"
\n" ); document.write( "False, there is no solution.
\n" ); document.write( "These are two parallel lines that never meet so there's no solution.\r
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