Infinitely many because if you subtract 7x from both sides, you get 4 = 4, which is true at all times no matter what x is.
hope this helps-------------
Answer:
2022 students
Step-by-step explanation:
Since 18 out of 270 students speak three or more languages, a prediction would be 30,330 x 18/270 = 2,022 students
The correct way is to plug in the answer back into the equation and see if it results in the correct solution.
