document.write( "Question 723532: x+5y=29
\n" ); document.write( "4x+1oy=66 \n" ); document.write( "
Algebra.Com's Answer #443232 by checkley79(3341)\"\" \"About 
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x+5y=29
\n" ); document.write( "x=29-5y
\n" ); document.write( "4x+10y=66
\n" ); document.write( "4(29-5y)+10y=66
\n" ); document.write( "116-20y+10y=66
\n" ); document.write( "-10y=66-116
\n" ); document.write( "-10y=-50
\n" ); document.write( "y=-50/-10
\n" ); document.write( "y=5 ans.
\n" ); document.write( "x=29-5*5
\n" ); document.write( "x=29-25
\n" ); document.write( "x=4 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "4*4+10*5=66
\n" ); document.write( "16+50-66
\n" ); document.write( "66=66
\n" ); document.write( " \n" ); document.write( "
\n" );