document.write( "Question 1130736: wendy's mother is three times as old as wendy, and in 14 years, she will be twice as old as wendy will be then. How old will they be 7 years from now?\r
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Algebra.Com's Answer #747347 by ankor@dixie-net.com(22740) You can put this solution on YOUR website! m = mother's present age \n" ); document.write( "w = Wendy's present age \n" ); document.write( ": \n" ); document.write( "Write an equation for each statement \n" ); document.write( ": \n" ); document.write( "wendy's mother is three times as old as wendy, \n" ); document.write( "m = 3w \n" ); document.write( "and in 14 years, she will be twice as old as wendy will be then. \n" ); document.write( "m + 14 = 2(w+14) \n" ); document.write( "m + 14 = 2w + 28 \n" ); document.write( "m = 2w + 28 - 14 \n" ); document.write( "m = 2w + 14 \n" ); document.write( "replace m with (3w), from the 1st statement \n" ); document.write( "3w = 2w + 14 \n" ); document.write( "3w - 2w = 14 \n" ); document.write( "w = 14 yrs is Wendy's present age \n" ); document.write( "then \n" ); document.write( "3(14) = 42 yrs is Mom's age \n" ); document.write( ": \n" ); document.write( " How old will they be 7 years from now? I'll let you figure this out \n" ); document.write( " |