document.write( "Question 277197: how do you do 3x+y=-8
\n" ); document.write( "-3x+4y=-2?
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Algebra.Com's Answer #201911 by checkley77(12844) $\"\"$ $\"About$

You can put this solution on YOUR website!
3x+y=-8
\n" ); document.write( "-3x+4y=-2 add.
\n" ); document.write( "----------------
\n" ); document.write( "5y=-10
\n" ); document.write( "y=-10/5
\n" ); document.write( "y=-2 ans.
\n" ); document.write( "3x+(-2)=-8
\n" ); document.write( "3x-2=-8
\n" ); document.write( "3x-8+2
\n" ); document.write( "3x=-6
\n" ); document.write( "x=-6/3
\n" ); document.write( "x=-2 ans.
\n" ); document.write( "Proof:
\n" ); document.write( "-3*-2+4*-2=-2
\n" ); document.write( "6-8=-2
\n" ); document.write( "-2=-2 \n" ); document.write( "

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