The cost of purchasing a hockey stick and puck if the stick costs 6 less than twice the cost of the

The cost of purchasing a hockey stick and puck if the stick costs 6 less than twice the cost of the puck.

Let the hockey stick cost h, and puck cost p.

Twice the cost of the puck means we multiply p by 2:
2p

6 less than this means we subtract 6:
h = 2p - 6

The total cost of the hockey stick and puck is:
p + 2p - 6
3p - 6