document.write( "Question 1149414: The cost of a pair of shoes is 10 times the cost of a pair of socks plus $2.
\n" ); document.write( "Write two different expressions to describe the cost to purchase 3 pairs of shoes and 3 pairs of socks.
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\n" ); document.write( "Write two different expressions to describe the cost to purchase 3 pairs of shoes and 3 pairs of socks.\r
\n" ); document.write( "\n" ); document.write( "let the cost of a pair of shoes be \"x\" and the cost of a pair of socks \"y\"
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\n" ); document.write( "first expressions:
\n" ); document.write( "the cost to purchase 3 pairs of shoes is \"3x\"
\n" ); document.write( "and 3 pairs of socks is \"3y\"\r
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\n" ); document.write( "\n" ); document.write( "if the cost of a pair of shoes is \"10\" times the cost of a pair of socks plus $\"2\", we have \r
\n" ); document.write( "\n" ); document.write( "\"x=10y%2B2\", so\r
\n" ); document.write( "\n" ); document.write( "second expressions:\r
\n" ); document.write( "\n" ); document.write( "3 pairs of shoes is \"3%2810y%2B2%29\" or \"30y%2B6\"
\n" ); document.write( "and 3 pairs of socks is \"3y\"\r
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