Answer:
x = 
Step-by-step explanation:
Distributive Property:
3 (x - 4) = 12x
3x - 12 = 12x
Combine like terms and isolate the variable:
3x - 12 = 12x
-12 = 9x
= x
x = 
I´m pretty sure that the terms would just be 3, 4, and 5. It depends what kind of problem it is.
Answer:
16 ft
Step-by-step explanation: