document.write( "Question 1015767: Your brother is 13 your age. Your sister is 4 years older than your brother. Your sister is 9 years old. Write and solve an equation to find your age a.\r
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Algebra.Com's Answer #632142 by addingup(3677)\"\" \"About 
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your brother is 13 your age?? 13 what?
\n" ); document.write( "Your sister is 4 years older than your brother and she is 9:
\n" ); document.write( "9-4= the age of your brother. Use your calculator.
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