document.write( "Question 868905: 5x+9y=-8y-x=10 \n" ); document.write( "

Algebra.Com's Answer #523889 by mananth(16946) $\"\"$ $\"About$

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5x+9y=-8\r
\n" ); document.write( "\n" ); document.write( "y-x=10
\n" ); document.write( "y=x+10
\n" ); document.write( "substitute y\r
\n" ); document.write( "\n" ); document.write( "5x+9(x+10)=-8\r
\n" ); document.write( "\n" ); document.write( "5x+9x+90=-8\r
\n" ); document.write( "\n" ); document.write( "14x=-98
\n" ); document.write( "/14
\n" ); document.write( "x=-7\r
\n" ); document.write( "\n" ); document.write( "plug x in y-x=10\r
\n" ); document.write( "\n" ); document.write( "y-(-7)=10
\n" ); document.write( "y+7=10
\n" ); document.write( "y=10-7
\n" ); document.write( "y=3
\n" ); document.write( "x=7,y=3 \n" ); document.write( "

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