Final answer to the problem
Step-by-step Solution
How should I solve this problem?
- Choose an option
- Solve for n
- Find the derivative using the definition
- Solve by quadratic formula (general formula)
- Simplify
- Find the integral
- Find the derivative
- Factor
- Factor by completing the square
- Find the roots
- Load more...
Apply fraction cross-multiplication
Learn how to solve equations problems step by step online. Solve the rational equation (n-3)/(n+9)=(n-7)/(n+3). Apply fraction cross-multiplication. The sum of two terms multiplied by their difference is equal to the square of the first term minus the square of the second term. In other words: (a+b)(a-b)=a^2-b^2.. Multiplying polynomials n+9 and n-7. Multiply the single term n by each term of the polynomial \left(n+9\right).