Answer:
2
Step-by-step explanation:

because 
So,

Answer:
2/13 of an hour
Step-by-step explanation:
X is your number
double it means 2 times x or 2x
add 4
2x+4
subtract my number
2x+4-x=x+4
subtract 3
x+4-3=x+1
the result is x+1 or your number plus 1
It depends on the equation that it's used in
I'm pretty sure its 127.8