ab/(a+b) = 2
then find a+b+c.
I'd really appreciate a step by step solution.
We would solve for one variable and after that replace it in the original equation in order to have only one variable equation:
You can solve for a or for b, I will show you the example for both:
Now, solve for a, replace the value of a in the initial equation and solve for b, then try for the other examples,
hint - you will have and , check them in the first equation
Here's how to do it. Once you have , use the same process on the equation to get . Now you have equatons for a and c in terms of b; sub them into and solve for b. Then you can sub the solution back into the other two equation to get values for a and c.
Despite the suggestion in the previous post and .
If you're having trouble following ebaines' post, here's the process to figuring out a, b, and c.
1. Isolate a in equation 1
2. sub it into equation 2
3. Isolate isolate b in equation 2
4. sub it into equation 3
5. equation 3 will only have the variable c. Isolating c will yield its value.
6. sub in your value for c into equation 2 to find the value of b
7. sub in your value for b into equation 1 to find the value of a