3x - 12
3(3x/3 - 12/3)
3(x - 4)
The answer is: 3(x - 4).
Answer:
5040
Step-by-step explanation:
You get this number by using the mathematical process of factorials.
Since <em>history </em>has seven words, we will solve seven factorial.
7! = 5040
Answer:
The man traveled 20km by train.
Step-by-step explanation:
If x is the distance he traveled by train, you can write this equation to represent the situation:

Then, you can simply solve for x:

The man traveled 20km by train.

(-8)x=(-6)x+10
(-2)x=10
X=10/-2
X=-5