document.write( "Question 563806: 2x+7y=3
\n" ); document.write( "x=1-4y \n" ); document.write( "
Algebra.Com's Answer #365044 by mananth(16946)\"\" \"About 
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2 x + 7 y = 3 .............1
\n" ); document.write( "1 x + 4 y = 1 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -4
\n" ); document.write( "Multiply (2) by 7
\n" ); document.write( "-8 x -28 y = -12
\n" ); document.write( "7 x 28 y = 7
\n" ); document.write( "Add the two equations
\n" ); document.write( "-1 x = -5
\n" ); document.write( "/ -1
\n" ); document.write( "x = 5
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "2 x + 7 y = 3
\n" ); document.write( "10 + 7 y = 3
\n" ); document.write( " 7 y = 3 -10
\n" ); document.write( " 7 y = -7
\n" ); document.write( " y = -1
\n" ); document.write( " \n" ); document.write( "
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