document.write( "Question 877564: Hi
\n" ); document.write( "I need to construct an algebraic expression for the following: I am really bad at algebra! I'd really appreciate help with this one as I have been trying to figure it out for ages.........\r
\n" ); document.write( "\n" ); document.write( "John has only 20 cent coins and 50 cent coins in his wallet. He has three more 50 cent coins than 20 cent coins, and their total value is €2.90. How many 20 cent coins does John have?\r
\n" ); document.write( "\n" ); document.write( "Kathy\r
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Algebra.Com's Answer #529404 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
x is how many 20 cent coins
\n" ); document.write( "y is how many 50 cent coins
\n" ); document.write( "y=3+x, three more 50 cent coins than 20 cent coins.\r
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\n" ); document.write( "\n" ); document.write( "The money units sum is \"20x%2B50y=290\", simplified as \"2x%2B5y=29\".
\n" ); document.write( "Substitute for y.
\n" ); document.write( "\"2x%2B5%283%2Bx%29=29\"
\n" ); document.write( "\"2x%2B15%2B5x=29\"
\n" ); document.write( "\"7x%2B15=29\"
\n" ); document.write( "\"7x=14\"
\n" ); document.write( "\"highlight%28x=2%29\", \"highlight%28y=5%29\".
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