document.write( "Question 1165622: The same of the ages of Roy and Karla is 91 years. 8years ago Roy’s age was 4 times karlas age. How old is Roy now? \n" ); document.write( "
Algebra.Com's Answer #790125 by ankor@dixie-net.com(22740)\"\" \"About 
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let r = Roy's present age
\n" ); document.write( "let k = Karla's
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\n" ); document.write( "write an equation for each statemen
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\n" ); document.write( "The sum of the ages of Roy and Karla is 91 years.
\n" ); document.write( "r + k = 91
\n" ); document.write( "Use this form for substitution
\n" ); document.write( "k = (91-r)
\n" ); document.write( "8years ago Roy’s age was 4 times karla's age.
\n" ); document.write( "r - 8 = 4(k-8)
\n" ); document.write( "r - 8 = 4k - 32
\n" ); document.write( "r = 4k - 32 + 8
\n" ); document.write( "r = 4k - 24
\n" ); document.write( " How old is Roy now?
\n" ); document.write( "replace k with (91-r)
\n" ); document.write( "r = 4(91-r) - 24
\n" ); document.write( "r = 364 - 4r
\n" ); document.write( "r + 4r = 364 - 24
\n" ); document.write( "5r = 340
\n" ); document.write( "r = 340/5
\n" ); document.write( "r = 68 yrs is Roy's age
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\n" ); document.write( "Check solution:
\n" ); document.write( " 91 - 68 = 23 is Karla's age
\n" ); document.write( "\"8 years ago Roy’s age was 4 times Karla's age.\"
\n" ); document.write( "68 - 8 = 4(23-8)
\n" ); document.write( "60 = 4(15)
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