document.write( "Question 885408: solve each system of equations.\r
\n" ); document.write( "\n" ); document.write( "-3x-y=4
\n" ); document.write( "4x+2y=-8 \n" ); document.write( "
Algebra.Com's Answer #535175 by mananth(16946)\"\" \"About 
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-3.00 x -1.00 y = 4.00 .............1
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\n" ); document.write( "4.00 x + 2.00 y = -8.00 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 2.00
\n" ); document.write( "Multiply (2) by 1.00
\n" ); document.write( "-6.00 x -2.00 y = 8.00
\n" ); document.write( "4.00 x + 2.00 y = -8.00
\n" ); document.write( "Add the two equations
\n" ); document.write( "-2.00 x = 0.00
\n" ); document.write( "/ -2.00
\n" ); document.write( "x = 0.00
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "-3.00 x -1.00 y = 4.00
\n" ); document.write( "0.00 -1.00 y = 4.00
\n" ); document.write( " -1.00 y = 4.00 + 0.00
\n" ); document.write( " -1.00 y = 4.00
\n" ); document.write( " y = -4.00
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