Question
Lynn has twice as many marbles as Vanessa. After Vanessa has bought another 90 marbles, Vanessa has twice as many marbles as Lynn. How many marbles does Vanessa have at first?
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Lynn has twice as many marbles as Vanessa. After Vanessa has bought another 90 marbles, Vanessa has twice as many marbles as Lynn. How many marbles does Vanessa have at first?