Magic squares when added all rows & columns equal the same #, such as the example on q #7. I need Question #8 . Please help

Here's the one with whole numbers:

[8] [1] [6]
[3] [5] [7]
[4] [9] [2]

For the one with polynomials, all you have to do it pick any weird number
you want for 'x', and then translate the whole numbers into expressions
with 'x' in them.

For example, if you say that 'x' is 1.6 . . . just a wild pick. Then ...

1 = x - 0.6
2 = x + 0.4
3 = 2x - 0.2
and so forth, and you could fill these into the second magic square
in place of the whole numbers.

Or if you don't want to mess with all the decimals, then just pick
a whole number for 'x'. I don't know ... maybe ' 4 '. Then ...

1 = x -3
2 = -x + 6
3 = (1/2)x + 1
and so forth. You just pick any old number you want for 'x',
and then make up expressions with it to substitute for all the
whole numbers in the first magic square.