Question 210317
You got them both right. Good job.



To verify your answer, simply plug the solution into the original equation and simplify. If you get a true equation (like 2=2 for example), then the answer is definitely a solution which verifies it.


So for example, let's say we want to verify the second problem:





{{{(x-2)/(x+2) = 5/7}}} Start with the given equation.



{{{(12-2)/(12+2) = 5/7}}} Plug in {{{x=12}}}



{{{10/14 = 5/7}}} Combine like terms.



{{{5/7 = 5/7}}} Reduce



Since the equation is true, the solution {{{x=12}}} is verified.