document.write( "Question 1161769: Micah is 73 years old. Alice is 31 years old. How many years ago was Micah's age 3 times Alice's age?
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Algebra.Com's Answer #785376 by ikleyn(52800) $\"\"$ $\"About$

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document.write( "73 - x = 3*(31-x)\r\n" );
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document.write( "73 - x = 93 - 3x\r\n" );
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document.write( "3x - x = 93 - 73\r\n" );
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document.write( "2x     = 20\r\n" );
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document.write( "x      = 20/2 = 10.\r\n" );
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document.write( "ANSWER.  10 years ago.\r\n" );
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