Inclusion–exclusion principle

At a certain college, $72$ students are enrolled into the computer science program. $10$ students take Statistics only (and not either of the other courses). $12$ students take Calculus only. $2$ students take Discrete Mathematics only. $3$ students take both Stats and Calc but not Discrete Math. $4$ students take Stats and Discrete Math but not Calc. $7$ students take Calc and Discrete Math but not Stats. $x$ students take all three.

How many computer science students do not take any of the three math courses? Write your answer as a formula. Your answer should look like $5-(1+3+x)$