document.write( "Question 1115446: a mooncake with two egg yolks cost $2 more than a mooncake with one egg yolk. The cost of six mooncakes with two egg yolks and 5 mooncakes with one egg folk is $ 130.80. Find the cost of a mooncake with two egg folk \n" ); document.write( "

Algebra.Com's Answer #730310 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "The cost of 6 mooncakes with two egg yolks + 5 mooncakes with one egg folk =  130.80 dollars\r\n" );
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document.write( "6*(x+2)                                    + 5x                            = 130.80\r\n" );
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document.write( "6x + 12  + 5x = 130.80\r\n" );
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document.write( "11x = 130.80 - 12 = 118.80  ========>  x =  = 10.80.\r\n" );
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document.write( "Hence,  one mooncake with one egg folk costs $10.80.\r\n" );
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document.write( "Then    one mooncake with two egg folk costs $12.80.\r\n" );
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