document.write( "Question 668693: Simplify by combining like terms.\r
\n" ); document.write( "\n" ); document.write( "(3+7)x(4+2)y
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Algebra.Com's Answer #415768 by swincher4391(1107)\"\" \"About 
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3+7 = 10\r
\n" ); document.write( "\n" ); document.write( "4+2 = 6\r
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\n" ); document.write( "\n" ); document.write( "So:\r
\n" ); document.write( "\n" ); document.write( "10x * 6y\r
\n" ); document.write( "\n" ); document.write( "Simplfied to:\r
\n" ); document.write( "\n" ); document.write( "10*6*x*y = 60xy
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