Quick Math help, apples

[WeDemBoyz]

how did you come up with 6 as the number of students?
that's the question op asked.

7x = 4x +18

7x = 4x + 18
-4x

3x = 18

x = 6

 

[Orbital-Fetus]

7x = 4x +18

7x = 4x + 18
-4x

3x = 18

x = 6

i totally forgot about subtracting from one part of the equation and adding to the other.

thank you.