Mathematics, 25.03.2021 19:20 sciencecreation87
Leah has unknown number of ping-pong balls. She buys 240 more and then counts that she ahs a total of 620. Write an equation to describe this situation. Use 'X' for the orginial number of ping-pong balls.
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Leah has unknown number of ping-pong balls. She buys 240 more and then counts that she ahs a total o...
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