document.write( "Question 826579: Jonny is thrice as old as Awa. Five years ago, he was five times as old as Awa. When will the sum of their ages be 80?
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Algebra.Com's Answer #498142 by josgarithmetic(39618)\"\" \"About 
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j for jonny, and w for awa.\r
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\n" ); document.write( "\n" ); document.write( "\"j=3w\"
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\n" ); document.write( "\n" ); document.write( "Before answering the question of when the sum of their ages be 80, first solve the system for j and w. Once found those values, assign a different variable to use in representing their age at the later unknown time, and form their sum, and equate to 80; and then solve this equation for the new variable. \r
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