The correct options are


<h3>How to find same value of x?</h3>
given that

first find value of x to obtain the equations have the same value of x.
Find the L.C.M between the 6,3

Then Cross multiplication should be done


Hence the correct options are


Learn more about problems on equations, refer:
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15 is 30% of
50 Change the percentage to a decimal by dividing it over 100:

Divide 15 over 0.3:
Since two people take both courses, we can subtract two from 7, 8, and 21, giving us 5, 6, and 19.
Add 5 and 6 together to get 11. Since eleven students are in those two groups, we can answer this. The answer will be 11/19.
Answer: x=3
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
- Multiply both sides of the equation by 3:

- Now you must make the equation equal to zero as following:

- Factor it, as you can see below. Therefore, you obtain the following result:
