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Nina has exactly enough money to purchase 6 widgets. If the cost of each widget were reduced by $1.25, then Nina would have exactly enough money to purchase 8 widgets. How much money does Nina have?

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x - the amount of money Nina has
y - the cost of one widget

Nina has exactly enough money to purchase 6 widgets.
\(x=6y\)

If the cost of each widget was reduced by $1.25 (so the cost of one widget would be y-1.25), Nina would have exactly enough money to purchase 8 widgets.
@@MATH_TOKEN_1@@

Substitute 6y for x in the second equation:
@@MATH_TOKEN_2@@

Nina has $30.

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