document.write( "Question 1201472: Peter is twice as old as Sam. If 8 is subtracted from Sam’s age and 4 is added to Peter’s age,
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Algebra.Com's Answer #835851 by ikleyn(52809) $\"\"$ $\"About$

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\n" ); document.write( "Peter is twice as old as Sam. If 8 is subtracted from Sam’s age and 4 is added to Peter’s age,
\n" ); document.write( "Peter will then be four times as old as Sam. Find their ages.
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document.write( "Sam   =  x years old.\r\n" );
document.write( "Peter = 2x years old.\r\n" );
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document.write( "Equation\r\n" );
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document.write( "    8 is subtracted from Sam’s age        4 is added to Peter’s age\r\n" );
document.write( "          4 * (x-8)                  =    (2x+4)\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    4x - 32 = 2x + 4\r\n" );
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document.write( "    4x - 2x = 32 + 4\r\n" );
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document.write( "       2x   =   36\r\n" );
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document.write( "        x   =   36/2 = 18\r\n" );
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document.write( "ANSWER.  Sam is 18 years old.  Peter is 2*18 = 36 years old.\r\n" );
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