Determine if these three equations are simplified correctly. you will earn 15 points to solve all of them!

1. (3x+7)÷(7)=3x
2.(6x)÷(2x^2)=(6)÷(2x+1)
3. (5+x)÷(5+2x)=(1)÷(x)

you so much!

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Can someone answer this question for me

What is the gcf of 20c^3-5c^4+30c^6