document.write( "Question 452308: Solve by substitution method.
\n" ); document.write( "5x-8y=9
\n" ); document.write( "9x+91=y\r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Missy
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Algebra.Com's Answer #310943 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Do it like this one. y is already solved for, so sub for y
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\n" ); document.write( "Solve by substitution.
\n" ); document.write( "6m+n=52
\n" ); document.write( "m-5n=19 --> m = 5n+19
\n" ); document.write( "Sub for m in the 1st eqn
\n" ); document.write( "6m+n=52
\n" ); document.write( "6(5n+19) + n = 52
\n" ); document.write( "30n + 114 + n = 52
\n" ); document.write( "31n = -62
\n" ); document.write( "n = -2
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\n" ); document.write( "6m+n=52
\n" ); document.write( "6m - 2 = 52
\n" ); document.write( "6m = 54
\n" ); document.write( "m = 9
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