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Expressions are number sentences without a equal sign. They also have a variable, that represents a number.
So, expressions are number sentences that we have to solve. we do this by removing the variable, then substitue it with a number. Right?
Yes, that is correct. I think you have it. So, what is 9-x when x is 17
Yes, that is correct.
It is ....8!!
Now that they have finally learned how to correctly solve the Expressions, they can go back to their time and teach it. They both became very famous teachers.
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