document.write( "Question 1171420: Mark and Eduardo are selling pies for a school fundraiser. Customers can buy cherry pie and lemon meringue pies. Mark sold 8 cherry pies and 6 lemon meringue pies for a total of 192. Eduardo sold 8 cherry pies and 7 lemon meringue pies for a total of 212. Find the cost of each one cherry pie and one lemon meringue \n" ); document.write( "
Algebra.Com's Answer #796409 by VFBundy(438)\"\" \"About 
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Cost of one cherry pie = C
\n" ); document.write( "Cost of one lemon meringue pie = L
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\n" ); document.write( "8C + 6L = 192
\n" ); document.write( "8C + 7L = 212
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\n" ); document.write( "Multiply first equation by -1:
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\n" ); document.write( "-8C - 6L = -192
\n" ); document.write( "8C + 7L = 212
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\n" ); document.write( "Add both equations together:
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\n" ); document.write( "L = 20
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\n" ); document.write( "We now know L = 20. Plug this into either original equation. (I chose the first one.):
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\n" ); document.write( "8C + 6L = 192
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\n" ); document.write( "8C + 6(20) = 192
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\n" ); document.write( "8C + 120 = 192
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\n" ); document.write( "8C = 72
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\n" ); document.write( "C = 9
\n" ); document.write( "
\n" ); document.write( "Cost of one cherry pie = C = 9
\n" ); document.write( "Cost of one lemon meringue pie = L = 20 \n" ); document.write( "
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