document.write( "Question 259664: The sum of Elisa's age and Ira's age is 47. Ira's age is 5 years less than three times Elisa's age. How old are Ira and Elisa? \n" ); document.write( "

Algebra.Com's Answer #191123 by Fombitz(32388) $\"\"$ $\"About$

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1. $\"E%2BI=47\"$
\n" ); document.write( "2. $\"I=3%2AE-5\"$
\n" ); document.write( "Substitute eq. 2 in eq. 1 and solve for E.
\n" ); document.write( " $\"E%2BI=47\"$
\n" ); document.write( " $\"E%2B3E-5=47\"$
\n" ); document.write( " $\"4E=52\"$
\n" ); document.write( " $\"E=13\"$
\n" ); document.write( "Then from eq. 2,
\n" ); document.write( " $\"I=3E-5=39-5=34\"$
\n" ); document.write( "Ira is 34 and Elisa is 13. \n" ); document.write( "

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