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OpenStudy (anonymous):
Jenny wants a total of 12 barbie dolls by the time she is 9 years old. Right now she has 4 barbie dolls. How many more does she need? Write an equation and solve. x + 4 = 12; Jenny needs 8 more barbie dolls. 4x = 12; Jenny needs 3 more barbie dolls. Eliminate x - 4 = 12; Jenny needs 16 more barbie dolls. x + 12 = 4; Jenny needs 8 more barbie dolls.
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