It’s should be the first one
Answer:
36x
Step-by-step explanation:
To do something like that you have to out together the like values. In this case both 12x and 13x have the same variable so you can multiply. 12 x 3 = 36 and the stays there so the answer would be 36x
hope this helped :)
Answer:
let the number be x, so that the two numbers are x and x - 32 The first number is x = 62.
The second number is x - 32 = 62 - 32 = 30.
Step-by-step explanation:
x + x - 32 = 92
or, 2x = 92 + 32
or, 2x = 124
or, x = 124/2 = 62
Answer: 528 km
Step-by-step explanation:
Let x be the total distance traveled by train.
Then, the total time he spent on looking outside the window and in sleeping = 
Then the remaining distance =
The time he spent on reading = 
Since, the train traveled 17.6 km more while he read than while he slept.
Then,

Hence, the train traveled 528 km.