document.write( "Question 483022: a shoe store uses a formula(3x-12) to calculate the size of a shoe according to the shoe \"last\" . a last is a template that is used to make the shoe. to determine the size of a childs shoe, the matching las is found and the last lenght is multiplied by three then 12 is subtracted feom the product. the lasts are measured in inches in multiple of one third . what size is the shoe that fits a child's foot whose matching last 7 inches long \n" ); document.write( "
Algebra.Com's Answer #330570 by solver91311(24713)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "Do the arithmetic.\r
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\n" ); document.write( "My calculator said it, I believe it, that settles it
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