document.write( "Question 939459: -3x+7y=-16
\n" ); document.write( "-9x+5y+16\r
\n" ); document.write( "\n" ); document.write( "Part A: Create an equivalent system of equations by replacing one equation with the sum of that equation and a multiple of the other. Show the steps to do this.\r
\n" ); document.write( "\n" ); document.write( "Part B: Show that the equivalent system has the same solution as the original system of equations.
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Algebra.Com's Answer #572487 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
Part A: Two ways to do this.
\n" ); document.write( "Eliminate y this way...\r
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\n" ); document.write( "\n" ); document.write( "\"system%28%28-5%29%28-3x%2B7y%29=-5%28-16%29%2C7%28-9x%2B5y%29=7%2A16%29\"\r
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\n" ); document.write( "\n" ); document.write( "\"system%2815x-35y=80%2C-63x%2B35y=168%29\"\r
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\n" ); document.write( "\n" ); document.write( "Now just sum the left members, sum the right members, set them equal.
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