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 , where a is the tree’s age in years. His equation is not correct. What error did he make?

Question

Revolt · Accepted Answer

The variable a should be multiplied by only and then added to 10.

Writing Equations

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 , where a is the tree’s age in years. His equation is not correct. What error did he make?

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