What is the answer to the question in the picture?

Step-by-step explanation:

To solve for d:

1. Remove parenthesis :

2. Leave the terms with d in one side of the equation:

- Add 1.2 in both sides of the equation:

- Subtract 0.3d and 0.1d in both sides of the equation:

3. Operate similar terms:

4. Divide into (-0,2) both sides of the equation:

Then , d is -16

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c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.

what are the