document.write( "Question 947438: Solve by the elimination method.\r
\n" ); document.write( "\n" ); document.write( "7a+9b=22
\n" ); document.write( "-7a+b=18\r
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\n" ); document.write( "There are infinitely many solutions __?
\n" ); document.write( "There is no solution __?
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Algebra.Com's Answer #578092 by josgarithmetic(39628)\"\" \"About 
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Add corresponding members. Find the value for b. \n" ); document.write( "
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