To solve for this, let me make this equation more simple to understand.
Get 216 on one side alone. To do this, we need to do the opposite order of operations of what 216 is currently performing.
Right now, we are dividing by N.
Since we need to do the opposite of dividing, we need to multiply.
Remember, what you do to one side of the equation, you must do to the other.
Multiply both sides by N.
N(216/N) = 216.
N(7.2) = 7.2N
Now our equation is:
7.2N = 216.
Now, to solve for N, we need to get N by itself.
We have 7.2 multiplying N.
Since our rule is to do the opposite of the order of equations to cancel out anything, we must divide both sides by 7.2.
Divide both sides by 7.2.
7.2N / 7.2 = N
216 / 7.2 = 30.
N = 30
I hope this helps!