Hey there!!
Given:
g(x) = 8x - 7
Given that g(x) is 25.
Hence,
... 25 = 8x - 7
Let's add 7 on both sides:
... 25 + 7 = 8x
... 32 = 8x
Let's now divide both sides by 8.
... x = 32/8
... x = 4
Hence, the answer is 4.
Hope my answer helps!
Happy Thanksgiving! :)