document.write( "Question 401392: next year amy will be exactly half her mother's age then.
\n" ); document.write( "a. using x to represent amy's age next year, write down an expression for her mother's age now.
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Algebra.Com's Answer #284061 by Sarpi(32)\"\" \"About 
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Amy will be X next year which is equal to half of her mother's.
\n" ); document.write( "Therefore, her mother's age today will be;
\n" ); document.write( " 1/2 = X
\n" ); document.write( " which is 2X \"cross multiplication\"
\n" ); document.write( "Testing:
\n" ); document.write( "Her mother is 2X now and Amy will be exactly half her mother's age so 1/2*2X which is equal to X.
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