document.write( "Question 899554: raul has a younger sister who is four years younger the sum combined age is 28 \n" ); document.write( "
Algebra.Com's Answer #545546 by ankor@dixie-net.com(22740)\"\" \"About 
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l has a younger sister who is four years younger
\n" ); document.write( "r = s + 4
\n" ); document.write( "r - s = 4
\n" ); document.write( " the sum combined age is 28.
\n" ); document.write( "r + s = 28
\n" ); document.write( "use elimination on these two equations
\n" ); document.write( "r - s = 4
\n" ); document.write( "r + s = 28
\n" ); document.write( "---------------adding eliminates s, find r
\n" ); document.write( "2r = 32
\n" ); document.write( "r = 16 is R's age
\n" ); document.write( "I'll let you find the sister's age. Confirm that they add up to 28
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