document.write( "Question 885450: 5x+4y=19.75
\n" ); document.write( "x+2y=5.75 \n" ); document.write( "

Algebra.Com's Answer #535174 by mananth(16946) $\"\"$ $\"About$

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5.00 x + 4.00 y = 19.75 .............1
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\n" ); document.write( "1.00 x + 2.00 y = 5.75 .............2
\n" ); document.write( "Eliminate y
\n" ); document.write( "multiply (1)by 1.00
\n" ); document.write( "Multiply (2) by -2.00
\n" ); document.write( "5.00 x 4.00 y = 19.75
\n" ); document.write( "-2.00 x -4.00 y = -11.50
\n" ); document.write( "Add the two equations
\n" ); document.write( "3.00 x = 8.25
\n" ); document.write( "/ 3.00
\n" ); document.write( "x = 2.75
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "5.00 x + 4.00 y = 19.75
\n" ); document.write( "13.75 + 4.00 y = 19.75
\n" ); document.write( " 4.00 y = 19.75 -13.75
\n" ); document.write( " 4.00 y = 6.00
\n" ); document.write( " y = 1.50
\n" ); document.write( "x=3,y=1.5 \n" ); document.write( "

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