document.write( "Question 157229: y=4x
\n" ); document.write( "3x+4y=38 \n" ); document.write( "
Algebra.Com's Answer #115867 by checkley77(12844)\"\" \"About 
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y=4x
\n" ); document.write( "-4x+y=0 multiply this equation by -4 & ad.
\n" ); document.write( "3x+4y=38
\n" ); document.write( "16x-4y=0
\n" ); document.write( "----------------
\n" ); document.write( "19x=38
\n" ); document.write( "x=38/19
\n" ); document.write( "x=2 answer.
\n" ); document.write( "y=4*2=8 answer.
\n" ); document.write( "Proof:
\n" ); document.write( "3*2+4*8=38
\n" ); document.write( "32+6=38
\n" ); document.write( "38=38
\n" ); document.write( " \n" ); document.write( "
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