document.write( "Question 854601: How do I solve this using the elimination method (linear combinations method).
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document.write( "Elimination Method Example:
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document.write( " Equation 1: 2x-y=4
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document.write( "Equation 2: 2x+5y=16
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document.write( "x will be eliminated
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document.write( "This is the answer I got…\r
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document.write( "equation 2 – equation 1
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document.write( "2x+5y=16
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document.write( "-) 2x-y=4
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document.write( " 6y=12
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document.write( " y=12
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document.write( "Substitute y=2 in equation1
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document.write( " 2x-y=4
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document.write( " 2x-2=4
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document.write( " 2x=6
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document.write( " x=3
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document.write( "Answer: x=3, y=2 or (3, 2)
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document.write( "Am I right or wrong… explain.
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document.write( "
Algebra.Com's Answer #514771 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! How do I solve this using the elimination method (linear combinations method). \n" ); document.write( "Elimination Method Example: \n" ); document.write( " Equation 1: 2x-y=4 \n" ); document.write( "Equation 2: 2x+5y=16 \n" ); document.write( "x will be eliminated \n" ); document.write( "This is the answer I got…\r \n" ); document.write( "\n" ); document.write( "equation 2 – equation 1 \n" ); document.write( "2x+5y=16 \n" ); document.write( "-) 2x-y=4 \n" ); document.write( " 6y=12 \n" ); document.write( " y=12 \n" ); document.write( "Substitute y=2 in equation1 \n" ); document.write( " 2x-y=4 \n" ); document.write( " 2x-2=4 \n" ); document.write( " 2x=6 \n" ); document.write( " x=3 \n" ); document.write( "Answer: x=3, y=2 or (3, 2) \n" ); document.write( "Am I right or wrong… explain. \n" ); document.write( "============== \n" ); document.write( "check your answers by subbing them into the equations. \n" ); document.write( " Equation 1: 2x-y=4 \n" ); document.write( "2*3 - 2 = 4? \n" ); document.write( "6 - 2 = 4 fits \n" ); document.write( "----------- \n" ); document.write( "Equation 2: 2x+5y=16 \n" ); document.write( "2*3 + 5*2 = 16 also fits, so it's correct. \n" ); document.write( " |