Are there choices to the answer or must you draw the graph?
If you can please attach images so I can help :)
To solve this problem you must apply the proccedure shown below:
1. Apply the Distributive property:

2. Now, you must simplify:

3. Add the like terms:

4. Simplify:

5. Solve for x. Divide -30 by 3:

The answer is: 
The slope is 4 so D
HOPE THIS HELPS:)
What do u mean by angle A