document.write( "Question 1174209: John is 43 years old and his daughter Susan is 7. In n-years, John will be four times as old as Susan is at that point. Find n and the ages of John and Susan after n-years.
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Algebra.Com's Answer #799593 by ikleyn(52798) $\"\"$ $\"About$

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document.write( "Write the equation for their ages in n years\r\n" );
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document.write( "    43 + n = 4*(7 + n).\r\n" );
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document.write( "Now solve it\r\n" );
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document.write( "    43 + n = 28 + 4n\r\n" );
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document.write( "    43 - 28 = 4n - n\r\n" );
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document.write( "      15    = 3n\r\n" );
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document.write( "       n    = 15/3 = 5.\r\n" );
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document.write( "Answer.   a)  n= 5:  in 5 years.\r\n" );
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document.write( "          b)  At that time, they will be  48 (the father) and 12 (Susan) years old.\r\n" );
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\n" ); document.write( "\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( "    - HOW TO algebreze and to solve age problems? \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 problems\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( "    - Age problem for three participants \r
\n" ); document.write( "\n" ); document.write( "    - Miscellaneous age problems \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( "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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