document.write( "Question 1097751: Last year, Tom was 15 years old and his brother John was 3. In how many years will Tom be three times as old as his brother John? \n" ); document.write( "

Algebra.Com's Answer #712172 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "Tom is 16 years old now.\r\n" );
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document.write( "His brother John's age is 4 years now.\r\n" );
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document.write( "Let x = \"In how many years\", the value under the question.\r\n" );
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document.write( "Then\r\n" );
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document.write( "16 + x = 3*(4+x).\r\n" );
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document.write( "It is your major equation to solve.\r\n" );
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document.write( "16 + x = 12 + 3x  ====>  4 = 2x  ====>  x =  = 2.\r\n" );
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document.write( "Answer.  In 2 years.\r\n" );
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document.write( "Check.   In 2 years, Tom will be 16+2 = 18 years old, while John's age will be 4+2 = 6 years.  The condition is satisfied.\r\n" );
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\n" ); document.write( "There is a bunch of lessons on age word problems \r
\n" ); document.write( "\n" ); document.write( "    - Age problems and their solutions\r
\n" ); document.write( "\n" ); document.write( "    - A fresh formulation of a traditional age problem\r
\n" ); document.write( "\n" ); document.write( "    - Really intricate age word problem\r
\n" ); document.write( "\n" ); document.write( "    - Selected age word problems from the archive\r
\n" ); document.write( "\n" ); document.write( "    - Age problems for mental solution \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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\n" ); document.write( "\n" ); document.write( "Read them and become an expert in solving age problems.\r
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\n" ); document.write( "\n" ); document.write( "Also, you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this online textbook under the topic \"Age word problems\".\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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