document.write( "Question 992935: solve the system using substitution:
\n" ); document.write( "4x-3y=-6
\n" ); document.write( "-x-2y=7\r
\n" ); document.write( "\n" ); document.write( "i got some weird answer on my quiz and i got it wrong i just want to see what i did wrong \n" ); document.write( "

Algebra.Com's Answer #612379 by josgarithmetic(39618) $\"\"$ $\"About$

You can put this solution on YOUR website!
You would need to show all your steps.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "You want to solve using substitution.
\n" ); document.write( " $\"system%284x-4y=-6%2C-x-2y=7%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Simplest may be
\n" ); document.write( " $\"-x=2y%2B7\"$
\n" ); document.write( " $\"x=-2y-7\"$
\n" ); document.write( "Now substitute into the other equation.
\n" ); document.write( " $\"4%28-2y-y%29-3y=-6\"$
\n" ); document.write( " $\"4%28-3y%29-3y=-6\"$
\n" ); document.write( " $\"4%283y%29%2B3y=6\"$
\n" ); document.write( " $\"15y=6\"$
\n" ); document.write( " $\"y=6%2F15\"$
\n" ); document.write( " $\"highlight%28y=2%2F5%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " $\"x=-2%282%2F5%29-7\"$
\n" ); document.write( " $\"x=-4%2F5-7\"$
\n" ); document.write( " $\"x=-4%2F5-35%2F5\"$
\n" ); document.write( " $\"highlight%28x=-39%2F5%29\"$ \n" ); document.write( "

\n" );