document.write( "Question 93340: Problem: From the information below,write an equation and then solve the equation.\r
\n" ); document.write( "\n" ); document.write( "My mother is three times as old as my sister. If the difference between their ages is 22 years, find both of their ages.\r
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Algebra.Com's Answer #67963 by Earlsdon(6294)\"\" \"About 
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Let M = mother's age and S = sister's age.
\n" ); document.write( "From the problem description, you can write:
\n" ); document.write( "M = 3S Mother's age is three times sister's age.
\n" ); document.write( "M-S = 22 The difference in their ages is 22. In this equation, substitute M = 3S.
\n" ); document.write( "3S-S = 22
\n" ); document.write( "2S = 22
\n" ); document.write( "S = 11
\n" ); document.write( "M = 3(11)
\n" ); document.write( "M = 33\r
\n" ); document.write( "\n" ); document.write( "Mother's age is 33 years.
\n" ); document.write( "Sister's age is 11 years.
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