There are two students in front of a student, two students behind a student and a student in the middle. How many students are there?

There are three students. The student in front has 2 students behind them, the student in the back has 2 students in front of them, and there is a student in the middle.

3

Step-by-step explanation:

2 ahead of the last one

2 behind the first one

the two may have that, even a breakdown is probably offered

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18