Pls gimme the answer i will love you forever

If lmn=xyz, which congruences are true by cpctc? check all that apply

Can you me find the missing length. i attached an image.

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]