document.write( "Question 898167: \n" ); document.write( "
Algebra.Com's Answer #544596 by Fombitz(32388)\"\" \"About 
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1.\"D%2BE=90\"
\n" ); document.write( "2.\"D%2BF=180\"
\n" ); document.write( "3.\"E=3D\"
\n" ); document.write( "Use 1 and 3 to solve for E and D substituting for E in 1.
\n" ); document.write( "Then use 2 to solve for F.
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