document.write( "Question 662163: The number of cats in the United States exceeds the dog population by 7.5 million. The number of cats and dogs combined is 114.7 million. Determine the number of dogs and cats in the United States. \n" ); document.write( "
Algebra.Com's Answer #411953 by checkley79(3341)\"\" \"About 
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C=D+7,500,000
\n" ); document.write( "C+D=114,700,000
\n" ); document.write( "(D+7.500.000)+D=114,700,000
\n" ); document.write( "2D+7,500,000=114,700,000
\n" ); document.write( "2D=114,700,000-7,500,000
\n" ); document.write( "2D=107,200,000
\n" ); document.write( "D=107,200,000/2
\n" ); document.write( "D=53,600,000 NUMBER OF DOGS.
\n" ); document.write( "C=53,600,000+7,500,000
\n" ); document.write( "C=61,100,000 NUMBER OF CATS.
\n" ); document.write( "PROOF:
\n" ); document.write( "61,100,000+53,600,000=114,700,000
\n" ); document.write( "114,700,000=114,700,000
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