document.write( "Question 329400: Let the operations ♦ and ♥ be defined for real numbers a and b \r
\n" ); document.write( "\n" ); document.write( "a ♦ b = 2a – b
\n" ); document.write( "a ♥ b = (a + b)/2\r
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Algebra.Com's Answer #236070 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
4 ♥ 9 = (4 + 9)/2 =13/2\r
\n" ); document.write( "\n" ); document.write( "(4 ♥ 9) ♦ 3=(13/2) ♦ 3=2(13/2)-3=13-3=10
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