Answer:
Your answer is correct.
Explanation:
When we have a product on one side of the equation and 0 on the other, we'd be looking to find when either of the parts of the product zeroes out. This is due to the fact that multiplying anything by 0 returns 0, therefore we're looking to find when any of the parts are 0, meaning that side of the equation would be zero.
In our product, the parts of the product are (3n + 7) and (n - 4). To find n, we'll find when both of these items are equal to zero:


Therefore, n is either -7/3 or 4.