document.write( "Question 452308: Solve by substitution method.
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document.write( "5x-8y=9
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document.write( "9x+91=y\r
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document.write( "Thank you,
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document.write( "Missy \n" );
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Algebra.Com's Answer #310943 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Do it like this one. y is already solved for, so sub for y \n" ); document.write( "--------------- \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 \n" ); document.write( "--------- \n" ); document.write( "6m+n=52 \n" ); document.write( "6m - 2 = 52 \n" ); document.write( "6m = 54 \n" ); document.write( "m = 9 \n" ); document.write( " \n" ); document.write( " |