document.write( "Question 570456: 2a+3b+9c+7a-b-11c \n" ); document.write( "
Algebra.Com's Answer #368320 by jim_thompson5910(35256)\"\" \"About 
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2a+3b+9c+7a-b-11c\r
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\n" ); document.write( "\n" ); document.write( "(2a+7a)+(3b-b)+(9c-11c)\r
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\n" ); document.write( "\n" ); document.write( "9a+2b-2c\r
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\n" ); document.write( "\n" ); document.write( "So 2a+3b+9c+7a-b-11c = 9a+2b-2c
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