document.write( "Question 276981: A survey of 51 pet owners revealed that 32 owned dogs, 38 owned cats, and 3 owned neither dogs nor cats. How many owned both dogs and cats? \n" ); document.write( "
Algebra.Com's Answer #201744 by edjones(8007)\"\" \"About 
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51-3=48 own cars or dogs or both. Make a Venn diagram and put 3 in the rectangle but out side the circles.
\n" ); document.write( "Let x= owned both dogs and cats. That is the intersection of the 2 circles.
\n" ); document.write( "32-x+38-x+x=48 the union of the 2 circles IE everything in the circles.
\n" ); document.write( "32-x+38-x+x=48
\n" ); document.write( "70-x=48
\n" ); document.write( "-x=-22
\n" ); document.write( "x=22 owned both dogs and cats.
\n" ); document.write( "FYI: 10 goes to the left of the intersection and 16 to the right.
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