Checking Integer Addition Equation

Hi there!
I usually look on to help with my coding.
However, I cannot seem to find anything to help me with checking student input of a simple addition equation (for 7th grade).
I would like to be able to check the equation that they type, such as " -17 + 5 = -12"

Here is the activity I am working on. This problem is found on Screen 5. Thank you in advance!

Here is one way to do it using patterns. You can change the problem by changing values of a, b, and c. [Copy of] Adding Integers on a Number Line • Activity Builder by Desmos

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Thank you. Is there a resource (that you know of) where I can learn more on how to code patterns?

Desmos has a series of videos on YouTube that are very helpful for this.