document.write( "Question 159010: Simplify -15-6c+3b-6c+9-2b, b-4c+3a-c-9b-4a, 2-a-(-b)+c+(-a)-b-(-c). \n" ); document.write( "
Algebra.Com's Answer #117226 by checkley77(12844)\"\" \"About 
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-15-6c+3b-6c+9-2b
\n" ); document.write( "b-12c-6
\n" ); document.write( "----------------
\n" ); document.write( "b-4c+3a-c-9b-4a
\n" ); document.write( "-a-8b-5c
\n" ); document.write( "--------------------
\n" ); document.write( "2-a-(-b)+c+(-a)-b-(-c).
\n" ); document.write( "2-a+b+c-a-b+c
\n" ); document.write( "-2a+2c+2=2(-a+c+1)
\n" ); document.write( "
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