document.write( "Question 563804: y=3x-8
\n" ); document.write( "y=4-x \n" ); document.write( "
Algebra.Com's Answer #365045 by mananth(16946)\"\" \"About 
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-3 x + 1 y = -8 .............1
\n" ); document.write( "1 x + 1 y = 4 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -1
\n" ); document.write( "Multiply (2) by 7
\n" ); document.write( "3 x -1 y = 8
\n" ); document.write( "7 x 7 y = 28
\n" ); document.write( "Add the two equations
\n" ); document.write( "10 x = 36
\n" ); document.write( "/ 10
\n" ); document.write( "x = 3.60
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "-3 x + 1 y = -8
\n" ); document.write( "-10.8 + 1 y = -8
\n" ); document.write( " 1 y = -8 + 10.8
\n" ); document.write( " 1 y = 2.8
\n" ); document.write( " y = 2.80
\n" ); document.write( " \n" ); document.write( "
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