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: 
What is the question you are trying to ask? All that you have given here as context is data.
Answer:
25% of the sweets in the jar are jelly beans.
Probability works by showing the outcome of a chance. For example , there are 2 yellow balls and 3 red balls . the outcome of drawing a yellow ball is 2/5 20% out of 50%