document.write( "Question 662600: use the method of elimination to solve the system of linear equations.\r
\n" ); document.write( "\n" ); document.write( "3a = 7 - b
\n" ); document.write( "3a = 5 - b\r
\n" ); document.write( "\n" ); document.write( "choose one:\r
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\n" ); document.write( "\n" ); document.write( "A. there is one solution , the solution is ___.
\n" ); document.write( "B. there are infinitely many solutions.
\n" ); document.write( "C. there are no solutions.\r
\n" ); document.write( "\n" ); document.write( "Thanks!
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Algebra.Com's Answer #412370 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "\"3a+=+7+-+b\"........1
\n" ); document.write( "\"3a+=+5+-+b\"........2
\n" ); document.write( "____________________subtract 2 from 1\r
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\n" ); document.write( "\n" ); document.write( "\"3a-3a+=+7+-+b-5-%28-b%29\"\r
\n" ); document.write( "\n" ); document.write( "\"0=+7+-+b-5%2Bb\"\r
\n" ); document.write( "\n" ); document.write( "\"0=+7+-5\"\r
\n" ); document.write( "\n" ); document.write( "\"0=+2\"...........C. there are no solutions
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