Answer:
first one is adding 2
second one is adding 5
third one is minusing 3
+2
+5
-3
Step-by-step explanation:
In the first one, every number is 2 more than the number before it.
In the second one, every number is 5 more than the number before it.
In the last one, every number is 3 less than the number before it.
it comes to
You would have to do long division if you are not able to use a calculator.
Answer: 10x + 7
multiply everything
2x + 7x + x + 7
combine like terms
10x + 7
