Solve the equation. Note if the equation is an identity or if it has no solution.

-2(-c-20)=-2c-20

Select the correct choice and fill in any answer boxes in your choice below.

A. c=

B.The equation is an identity.

C.The equation has no solution.

1 answer

To solve the equation, we can start by simplifying both sides:

-2(-c-20)=-2c-20

Distribute -2 on the left side:
2c+40=-2c-20

Now, let's add 2c to both sides:
2c+2c+40=-2c+2c-20
4c+40=-20

Next, subtract 40 from both sides:
4c+40-40=-20-40
4c=-60

Now, divide both sides by 4:
(4c)/4=(-60)/4
c=-15

Therefore, the solution to the equation is c=-15. The correct choice is A. c=-15.