document.write( "Question 446176: Solve by the substitution method.
\n" ); document.write( "4x+4y=24
\n" ); document.write( "-5x-y=24\r
\n" ); document.write( "\n" ); document.write( "The solution type in ordered pair.
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Algebra.Com's Answer #307232 by mananth(16946)\"\" \"About 
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4x+4y=24 .............1
\n" ); document.write( "y=-24-5x ---------2
\n" ); document.write( "Plug the value of y in (1)
\n" ); document.write( "4x+4(-24-5x)=24
\n" ); document.write( "4x-96-20x=24
\n" ); document.write( "4x-20x=24+96
\n" ); document.write( "-16x=120
\n" ); document.write( "/-16
\n" ); document.write( "x=-7.5
\n" ); document.write( "Plug the value of x in (1)
\n" ); document.write( "4x+4y=24
\n" ); document.write( "4*-7.5 +4y=24
\n" ); document.write( "-30+4y=24
\n" ); document.write( "4y=54
\n" ); document.write( "/4
\n" ); document.write( "y=13.5
\n" ); document.write( "
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