document.write( "Question 536436: solve by the substitution method 7m+n=10 m-6n=26 the solution is.
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document.write( "-7x+3y=4 -2x+y=10 the solution
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document.write( "9x+8y=29 -7x+y=28 the solution
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document.write( "I really need some help. I dont understand how to do this
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Algebra.Com's Answer #352378 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! solve by the substitution method \n" ); document.write( "7m+n=10 \n" ); document.write( "m-6n=26 --> m = 6n + 26 \n" ); document.write( "Sub for m in the 1st eqn \n" ); document.write( "7m + n = 10 \n" ); document.write( "7(6n+26) + n = 10 \n" ); document.write( "42n+182 + n = 10 \n" ); document.write( "43n = -172 \n" ); document.write( "n = -4 \n" ); document.write( "----------- \n" ); document.write( "m = 6n + 26 \n" ); document.write( "m = 2 \n" ); document.write( "============ \n" ); document.write( "-7x+3y=4 -2x+y=10 \n" ); document.write( "Solve for y in the 2nd eqn, sub into the 1st. \n" ); document.write( "============ \n" ); document.write( "9x+8y=29 -7x+y=28 \n" ); document.write( "Same thing. \n" ); document.write( " |