document.write( "Question 715475: Use the elimination method to solve the system of equations\r
\n" ); document.write( "\n" ); document.write( "a+ 7b = 9
\n" ); document.write( "a + 2b = -1\r
\n" ); document.write( "\n" ); document.write( "Is there one solution, what is it
\n" ); document.write( "Is there infinitely solutions
\n" ); document.write( "There is no solution
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Algebra.Com's Answer #439445 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Use the elimination method to solve the system of equations\r
\n" ); document.write( "\n" ); document.write( "a + 7b = 9
\n" ); document.write( "a + 2b = -1
\n" ); document.write( "-------------- Subtract
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