document.write( "Question 655527: Use the method of substitution to solve the system of linear equations.\r
\n" ); document.write( "\n" ); document.write( "3a=7-b
\n" ); document.write( "3a=2-b\r
\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.
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Algebra.Com's Answer #409165 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
Hint: \r
\n" ); document.write( "\n" ); document.write( "3a = 7 - b
\n" ); document.write( "3a = 2 - b\r
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\n" ); document.write( "\n" ); document.write( "basically says \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "some number = 7 - b
\n" ); document.write( "same number = 2 - b
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