Answer :
One possible equation would be 20 = 1/2x + 4.
Let x be the number of students in his homeroom. 1/2x is half of the students in his homeroom. Four more than 1/2 would be 1/2x + 4. This is, or equals, the 20 students that have tickets.
Let x be the number of students in his homeroom. 1/2x is half of the students in his homeroom. Four more than 1/2 would be 1/2x + 4. This is, or equals, the 20 students that have tickets.
Answer:
No 4 - 1/2 = 20
Yes 1/2m + 4 = 20
No 1/2m - 4 = 20
Yes 4 = 20 - 1/2m
Step-by-step explanation: