Respuesta :
(3+x)+x=57
3+x+x=57
3+2x=57
2x=57-3
2x=54
x=54/2
x=27
so the first section has 27 students and the second section has 30 students
3+x+x=57
3+2x=57
2x=57-3
2x=54
x=54/2
x=27
so the first section has 27 students and the second section has 30 students