document.write( "Question 231215: Solve the system: x+6y=24 -6x+5y=-21
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Algebra.Com's Answer #171184 by checkley77(12844) $\"\"$ $\"About$

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x+6y=24 multiply by 6 & add.
\n" ); document.write( "-6x+5y=-21
\n" ); document.write( "6x+36y=144
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\n" ); document.write( "41y=123
\n" ); document.write( "y=123/41
\n" ); document.write( "y=3 ans.
\n" ); document.write( "x+6*3=24
\n" ); document.write( "x+18=24
\n" ); document.write( "x=24-18
\n" ); document.write( "x=6 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "-6*6+5*3=-21
\n" ); document.write( "-36+15=-21
\n" ); document.write( "-21=-21 \n" ); document.write( "

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