document.write( "Question 135393This question is from textbook Essentials of Elementary Algebra
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document.write( ": Solving Systems of Linear Equations by the Substitution Method.\r
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document.write( "I am having a difficult time understanding how to do this. I was hoping someone could help me.\r
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document.write( "The problem is: y=x-3 x+y=5
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document.write( "x+x-3=5 if I am reading the problem right.
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document.write( "But I am not sure where to go after that. \r
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document.write( "Will you please help me understand this? Thank you! \n" );
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Algebra.Com's Answer #99191 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The problem is: \n" ); document.write( "y=x-3 \n" ); document.write( "x+y=5 \n" ); document.write( "-------- \n" ); document.write( "You are told that y = x-3 so substitute that into the 2nd equation \n" ); document.write( "to get: \n" ); document.write( "x+(x-3) = 5 \n" ); document.write( "2x-3=5 \n" ); document.write( "2x = 8 \n" ); document.write( "x = 4 \n" ); document.write( "----------- \n" ); document.write( "Now, since y = x-3, substitute to get: \n" ); document.write( "y = 4-3 = 1 \n" ); document.write( "---------------- \n" ); document.write( "Solution: (4,1) \n" ); document.write( "================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |