document.write( "Question 532464: Please solve the following by elimination...
\n" ); document.write( "3x + 4y = -8
\n" ); document.write( "x + 4y = 4\r
\n" ); document.write( "\n" ); document.write( "5x + 4y = 22
\n" ); document.write( "5x + y = 13\r
\n" ); document.write( "\n" ); document.write( "Thank you \n" ); document.write( "
Algebra.Com's Answer #350857 by mananth(16946)\"\" \"About 
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3 x + 4 y = -8 .............1
\n" ); document.write( "1 x + 4 y = 4 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -1
\n" ); document.write( "Multiply (2) by 1
\n" ); document.write( "-3 x -4 y = 8
\n" ); document.write( "1 x 4 y = 4
\n" ); document.write( "Add the two equations
\n" ); document.write( "-2 x = 12
\n" ); document.write( "/ -2
\n" ); document.write( "x = -6.00
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "3 x + 4 y = -8
\n" ); document.write( "-18 + 4 y = -8
\n" ); document.write( " 4 y = -8 + 18
\n" ); document.write( " 4 y = 10
\n" ); document.write( " y = 10/4
\n" ); document.write( "y=5/2\r
\n" ); document.write( "\n" ); document.write( "----------------\r
\n" ); document.write( "\n" ); document.write( "5 x + 4 y = 22 .............1
\n" ); document.write( "5 x + 1 y = 13 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by -1
\n" ); document.write( "Multiply (2) by 4
\n" ); document.write( "-5 x -4 y = -22
\n" ); document.write( "20 x 4 y = 52
\n" ); document.write( "Add the two equations
\n" ); document.write( "15 x = 30
\n" ); document.write( "/ 15
\n" ); document.write( "x = 2
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "5 x + 4 y = 22
\n" ); document.write( "10 + 4 y = 22
\n" ); document.write( " 4 y = 22 -10
\n" ); document.write( " 4 y = 12
\n" ); document.write( " y = 3
\n" ); document.write( "m.ananth@hotmail.ca
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