document.write( "Question 723690: 3x-5y=19
\n" ); document.write( "x-5y=13 \n" ); document.write( "

Algebra.Com's Answer #443268 by checkley79(3341) $\"\"$ $\"About$

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3x-5y=19
\n" ); document.write( "x-5y=13
\n" ); document.write( "X=5Y+13 NOW REPLACE X IN THE FIRST EQUATION WITH(5Y+13) & SOLVE FOR Y.
\n" ); document.write( "3(5Y+13)-5Y=19
\n" ); document.write( "15Y+39-5Y=19
\n" ); document.write( "10Y=19-39
\n" ); document.write( "10Y=-20
\n" ); document.write( "Y=-20/10
\n" ); document.write( "Y=-2 ANS.
\n" ); document.write( "X=5(-2)+13
\n" ); document.write( "X=-10+13
\n" ); document.write( "X=3 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "3*3-5(-2)=19
\n" ); document.write( "9+10=19
\n" ); document.write( "19=19 \n" ); document.write( "

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