Write a word problem with Sylvester buying variety’s of donuts using this expression

3/4x - 12 - 3 + 4 = 10

Sylvester went to the donut shop and bought 3/4 of a dozen donuts, then he bought 12 more donuts, then he returned 3 donuts, and finally he bought 4 more donuts. How many donuts did Sylvester end up with?