document.write( "Question 417998: Solve the system of equations using the elimination method:\r
\n" ); document.write( "\n" ); document.write( ".08x + .06y = 144
\n" ); document.write( "x + y = 2000 \n" ); document.write( "

Algebra.Com's Answer #292600 by mananth(16946) $\"\"$ $\"About$

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.08x + .06y = 144
\n" ); document.write( "multiply by 100
\n" ); document.write( "8x+6y=14400.............1
\n" ); document.write( "x + y = 2000............2\r
\n" ); document.write( "\n" ); document.write( "8x+6y=14400.............1
\n" ); document.write( "1x+1y=2000.............2
\n" ); document.write( "
\n" ); document.write( "multiply (1)by 1
\n" ); document.write( "Multiply (2) by -6
\n" ); document.write( "8x+6y=14400
\n" ); document.write( "-6x-6y=-12000
\n" ); document.write( "
\n" ); document.write( "Add the two equations
\n" ); document.write( "2x=2400
\n" ); document.write( "
\n" ); document.write( "/2
\n" ); document.write( "
\n" ); document.write( "x=1200
\n" ); document.write( "
\n" ); document.write( "plug value of x in (1)
\n" ); document.write( "8x+6y=14400
\n" ); document.write( "9600+6y= 14400
\n" ); document.write( "6y=14400 -9600
\n" ); document.write( "6y=4800
\n" ); document.write( "y=800
\n" ); document.write( " \n" ); document.write( "

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