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You can put this solution on YOUR website!
Solve the system by using the addition method.
\n" ); document.write( "L1) -0.1x+0.05y=5
\n" ); document.write( "L2) 0.05x+0.06y=2.7
\n" ); document.write( ":
\n" ); document.write( "It's probably easiest to eliminate all of the decimals and solve as usual. Multiply L1 and L2 by 100
\n" ); document.write( "100(-0.1x+0.05y=5)-------->-10x+5y=500
\n" ); document.write( "100(0.05x+0.06y=2.7)------>5x+6y=270
\n" ); document.write( "Now multiply your new L2 by 2 and add the two equations together:
\n" ); document.write( "L2) 2(5x+6y=270)----->10x+12y=540
\n" ); document.write( ":
\n" ); document.write( "-10x+5y=500
\n" ); document.write( "+10x+12y=540
\n" ); document.write( "________________
\n" ); document.write( "0x+17y=1040
\n" ); document.write( "17y=1040
\n" ); document.write( "17y/17=1040/17
\n" ); document.write( "y=61.17647059 Round off to whatever your teacher asks for.
\n" ); document.write( "Plug that in for y in one of the equations and solve for x.
\n" ); document.write( "-0.1x+0.05(61.17647059)=500
\n" ); document.write( "-0.1x+3.0588235=5
\n" ); document.write( "-0.1x=5-3.0588235
\n" ); document.write( "-0.1x=1.9411765
\n" ); document.write( "-0.1x/-0.1=1.9411765/-0.1
\n" ); document.write( "x=-19.411765
\n" ); document.write( "The solultion is (-19.411765,61.176470), if I was your teacher I'd probably have you round it off to: (-19.41,61.18)
\n" ); document.write( "Happy Cacluating!!! \n" ); document.write( "