document.write( "Question 309873: y=3x
\n" ); document.write( "y-4x=10
\n" ); document.write( "solve for x
\n" ); document.write( "

Algebra.Com's Answer #221647 by mananth(16946)\"\" \"About 
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y=3x
\n" ); document.write( "y-4x=10\r
\n" ); document.write( "\n" ); document.write( "subtract the second equation from the first.\r
\n" ); document.write( "\n" ); document.write( "y-(y-4x) =3x-10\r
\n" ); document.write( "\n" ); document.write( "y-y+4x=3x-10\r
\n" ); document.write( "\n" ); document.write( "4x=3x-10
\n" ); document.write( "4x-3x=10
\n" ); document.write( "x=10
\n" ); document.write( ".
\n" ); document.write( "y=30
\n" ); document.write( "
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