Answer:
no
Step-by-step explanation:
-7+x^2-3x = 9+x-10
-7+(-2)^2-3*(-2) 9+(-2)-10
-7+4+6 9-12
3 > -3
if we substitute -2 to x, answer is not equal
so since only 3 out of 11 went to visit then it is simple
since just 3 went and there were 11
3/11 of the students went