document.write( "Question 1176874: https://ibb.co/Jmqk5sJ \n" ); document.write( "
Algebra.Com's Answer #804807 by Boreal(15235)\"\" \"About 
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It is {1,2,3,4,7}
\n" ); document.write( "find what B and C have in common {2,4}
\n" ); document.write( "then have that part of A although if anything repeats, it isn't counted twice.
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