document.write( "Question 337417: how can i use the commutative and associative properties to find three equivalent expresions for (3+x)+y \n" ); document.write( "
Algebra.Com's Answer #241850 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "1. Start with \r\n" );
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document.write( "(3+x)+y\r\n" );
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document.write( "Commute (interchange) the 3 and the x and get\r\n" );
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document.write( "(x+3)+y\r\n" );
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document.write( "2. Start with \r\n" );
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document.write( "(3+x)+y\r\n" );
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document.write( "Commute (interchange) the whole (3+x) and the y and get\r\n" );
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document.write( "y+(3+x)\r\n" );
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document.write( "3. Start with \r\n" );
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document.write( "(3+x)+y\r\n" );
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document.write( "Associate the x and the y instead of the 3 and the x and get:\r\n" );
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document.write( "3+(x+y)\r\n" );
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document.write( "Using the commutative principle means to interchange two numbers.\r\n" );
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document.write( "Using the associative principle means to move the parentheses from\r\n" );
document.write( "around one pair of numbers to around the other pair of numbers.\r\n" );
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document.write( "Edwin

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