Answer:
Prime= 37, 71 Composite= 65, 82
Step-by-step explanation:
Prime numbers can only be divided by 1 and itself and composite numbers can be divided by more.
2x = 15 + x
First, our goal is to get 'x' to equal something by itself. To do so, we will have to do everything on one side. Let's subtract 'x' from each sides.

Second, our next step is to subtract '2x - x'. Since 'x' is basically considered (1), it will equal 'x'.

Answer:
OK so for substitution you will be taking away so say you have 5 apples and someone eats 3 you now have 2 apples. so it would be 5 - 3 =2
I hope this helps
Let x be the time for the AG800. Then the time for the AG950 is x + 20.


Cross-multiplying and simplifying, we get:

The positive solution to this quadratic is: x = 15.
The answer is: Time for model AG800 = 15 minutes: time for model AG950 = 35 minutes.