document.write( "Question 462921: Solve for x and y:\r
\n" ); document.write( "\n" ); document.write( "8x+5y=5
\n" ); document.write( "7x+10y=-1 \n" ); document.write( "

Algebra.Com's Answer #317264 by MathLover1(20850) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( " $\"8x%2B5y=5\"$ ....1...both sides multiply by $\"2\"$ and you will get $\"16x%2B10y=10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7x%2B10y=-1\"$ .......2\r
\n" ); document.write( "\n" ); document.write( "------------------------------\r
\n" ); document.write( "\n" ); document.write( " $\"16x%2B10y=10\"$ .........1
\n" ); document.write( "-
\n" ); document.write( " $\"7x%2B10y=-1\"$ ...........2....subtract 2 from 1
\n" ); document.write( "------------------------------\r
\n" ); document.write( "\n" ); document.write( " $\"16x-7x%2B10y-10y=10-%28-1%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"9x%2Bcross%2810y%29-cross%2810y%29=10%2B1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"9x=11\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=11%2F9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x=1.2222222222222222222222222222222\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"x=1.222\"$ \r
\n" ); document.write( "\n" ); document.write( "now find $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"7%281.22%29%2B10y=-1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"8.54%2B10y=-1\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"10y=-1-8.54\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"10y=-9.54\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=-9.54%2F10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=-0.954\"$ \r
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"8x%2B5y=5\"$ ....1\r
\n" ); document.write( "\n" ); document.write( " $\"8%281.222%29%2B5%28-0.954%29=5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"9.77-4.77=5\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"5=5\"$ \r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );