Answer:
Step-by-step explanation:
Answer:
Momentum of hocking player

Hockey player

Step-by-step explanation:
For first hockey player :
Given that
mass (m) 
Velocity (v) 

where
is momentum
put the value in equation (1)
For second hockey player :
Given that
mass (m) 
velocity (v) 

Where
is momentum
put the value in equation (2)

First....we need to do inverse operation
Subtract 7 from both sides.
2x+7=1
-7 -7
2x=-6
Now, we need to divide 2 by both sides to isolate x.
2x=-6
2x/2=-6/2
x=-3
Our final answer is that x= -3
[x]=[0] expression form answer