document.write( "Question 1202402: Jane is 3 years older than jetty and 4 years younger than omoshi. How old is jetty if the sum of their ages is 70 years? \n" ); document.write( "

Algebra.Com's Answer #837216 by ikleyn(52803) $\"\"$ $\"About$

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\n" ); document.write( "Jane is 3 years older than jetty and 4 years younger than omoshi.
\n" ); document.write( "How old is jetty if the sum of their ages is 70 years?
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document.write( "Let Jane is x years old now.\r\n" );
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document.write( "Then Jetty is (x-3) years old, while Omoshi is (x+4) years old.\r\n" );
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document.write( "Write equation for the sum of ages\r\n" );
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document.write( "    x + (x-3) + (x+4) = 70.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    3x + 1 = 70\r\n" );
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document.write( "    3x = 70 - 1 = 69\r\n" );
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document.write( "     x          = 69/3 = 23.\r\n" );
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document.write( "Thus Jane is 23 years old.  Hence, Jetty is (23-3) = 20 years old.    ANSWER\r\n" );
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document.write( "CHECK.  Then Omoshi is (23+4) = 27 years old, and the sum of the three ages is\r\n" );
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document.write( "        20 + 23 + 27 = 70 years.  ! correct !\r\n" );
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