document.write( "Question 1117392: Joe is 22 years old and Ruth is 10 years old. In how many years will joe be twice the age of Ruth
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Algebra.Com's Answer #732466 by ikleyn(52835) $\"\"$ $\"About$

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document.write( "Joe is 12 years older than Ruth.  so Joe will be twice Ruth's age when Joe will be 24 years old and Ruth will be 12 years old. \r\n" );
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document.write( "It will happen in two years.\r\n" );
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\n" ); document.write( "\n" ); document.write( "The algebra solution is as follows.\r
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document.write( "Let x is the number of years under the question.  Then \r\n" );
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document.write( "22 + x = 2*(10+x)\r\n" );
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document.write( "22 + x = 20 + 2x\r\n" );
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document.write( "22 - 20  = 2x - x  ====>  x = 2,  and you have the same answer.\r\n" );
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