Andrew N. answered 09/10/20
Math is a human activity that can be learned by anyone.
the absolute value of the difference between 3 times a number and 2 is 7
We can take "the absolute value of the difference between ____ and ____ is 7" to mean:
| __ - __ | = 7
Our first blank is "three times a number" so we can use the variable n and take this to mean 3*n. The second blank is just 2, so filling in the blanks we have
| 3*n - 2 | = 7