document.write( "Question 466803: Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this.
\n" ); document.write( "-8x – 4y = -68
\n" ); document.write( "x + 3y = 16
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Algebra.Com's Answer #320270 by mananth(16946)\"\" \"About 
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-8x-4y=-68 .............1
\n" ); document.write( "3y=16-x ---------2
\n" ); document.write( "/3
\n" ); document.write( "y=5.33-0.33x
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\n" ); document.write( "Substitute y in (1)
\n" ); document.write( "-8x-4(5.33-0.33 x)=-68
\n" ); document.write( "-8x-21.33+1.33x=-68
\n" ); document.write( "-8x+1.33x=-68+ 21.33
\n" ); document.write( "-6.67 x = -46.67
\n" ); document.write( "/-6.67
\n" ); document.write( "x=7
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "-8x-4y =-68
\n" ); document.write( "-8*7-4y=-68
\n" ); document.write( "-56-4y = -68
\n" ); document.write( "-4y=-12
\n" ); document.write( "/-4
\n" ); document.write( "y=3
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