document.write( "Question 682114: A,s mother is twice as old as A,s brother.A is 6 years younger than his brother but 4 years older than this sister.if A,s sister is 15 his mother,s age is: \n" ); document.write( "
Algebra.Com's Answer #423125 by ankor@dixie-net.com(22740)\"\" \"About 
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A,s mother is twice as old as A,s brother.
\n" ); document.write( "A is 6 years younger than his brother but 4 years older than this sister.
\n" ); document.write( "if A,s sister is 15 his mother,s age is:
\n" ); document.write( ";
\n" ); document.write( "Write an equation for each statement
\n" ); document.write( ":
\n" ); document.write( "\"A,s mother is twice as old as A,s brother.\"
\n" ); document.write( "m = 2b
\n" ); document.write( ":
\n" ); document.write( "\"A is 6 years younger than his brother\"
\n" ); document.write( "A = b-6
\n" ); document.write( ":
\n" ); document.write( "\"but 4 years older than this sister.\"
\n" ); document.write( "A = s+4
\n" ); document.write( ":
\n" ); document.write( "\"if A,s sister is 15 his mother,s age is:
\n" ); document.write( "s = 15
\n" ); document.write( "then
\n" ); document.write( "A = 15 + 4
\n" ); document.write( "A = 19
\n" ); document.write( "and we know
\n" ); document.write( "A = b - 6
\n" ); document.write( "19 = b - 6
\n" ); document.write( "19 + 6 = b
\n" ); document.write( "b = 25
\n" ); document.write( "and we know
\n" ); document.write( "m = 2b
\n" ); document.write( "m = 2(25)
\n" ); document.write( "m = 50 yrs is Mom's age
\n" ); document.write( " \n" ); document.write( "
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