document.write( "Question 1144314: Maggie’s brother is 4 years younger than three times her age . The sum of their age is 16 . How old is Maggie ? \n" ); document.write( "

Algebra.Com's Answer #765392 by ikleyn(52802) $\"\"$ $\"About$

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document.write( "Let x be the Maggie's age.\r\n" );
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document.write( "Then the brother's age is  3x - 4.\r\n" );
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document.write( "The total is\r\n" );
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document.write( "    x + (3x-4) = 16.\r\n" );
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document.write( "Simplify and solve for x.\r\n" );
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document.write( "    4x - 4 = 16\r\n" );
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document.write( "    4x     = 16 + 4\r\n" );
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document.write( "    4x     = 20\r\n" );
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document.write( "     x     = 20/4 = 5.\r\n" );
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document.write( "ANSWER.  Maggie is 5 years old.\r\n" );
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