Answer:
2x+7
Step-by-step explanation:
To Simplify an Expression , we combine Like-Terms
So for our Question , we have Terms with x and Constant Term
Combine Terms with x : 5x-2x-x=2x
Constant Term : 7
Then 5x-2x+7-x = 2x+7
Answer:
∠COD and ∠DOB are complementary angles .
Step-by-step explanation:
Definition of Complementary angles
Two angles whose sum is equal to 90 degree is called complementary angles .
As the figure given in the question .
Clearly
∠COD + ∠BOD = 90°
Therefore ∠COD and ∠DOB are complementary angles .
30u^2v^3 and 8u^5v is : 2u^2v
