What is 18 = 1/3 (3h-6)

h = 20

Step-by-step explanation:

So the first thing we need to do here is distribute our one third so we can then deal with the 18 on the other side of the equation.

So lets distribute!

1/3 (3h-6) = h - 2

This is because 1/3 x 3 = 1 and 1/3 x 6 = 2

We could also re-write both of these above to get

3/3 = 1 and 6/3 = 2

So now we have

18 = h - 2

All that is left now is to add two to both sides!

Which leaves h = 20