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28 September, 09:55

Javier asks his mother how old a tree in their yard is. His mother says, "The sum of 10 and two-thirds of that tree's age, in years, is equal to 50." Javier writes the equation { 10 + 2/3} where a is the tree's age in years. His equation is not correct. What error did he make?

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  1. 28 September, 13:25
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    "a" is not in Javier's original equation you posted ... however, the correct equation is 50 = 10 + 2a/3

    a is 60 just as an FYI.
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