How to check if an equation is set up correctly from a word problem?

Questions
1

I am asking students to write an equation to solve a word problem.

For example, students need to write 2x+4=100.

Can someone help me figure it out how to check if the equation is set up correctly?

Thanks!!

2

Here’s what I would do:

I broke the correctness checking into pieces so you can alter correct: to meet your needs. Let me know if I need to explain anything.

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3

Hi Daniel! This is excellent! You have covered so many possibilities that I didn’t think of!

I will try to use this to fit in my slides. I will ask you questions when I fail (:

Thanks so much! It is very helpful!

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