Solve the following System of Equations by either Substitution or Elimination or a combination thereof. Place your answer in coordinate form. 5x+4y−z=1
2x−2y+z=1
−x−y+z=2

https://www.khanacademy.org/math/8th-engage-ny/engage-8th-module-4/8th-module-4-topic-d/v/solving-systems-by-elimination-3

This video link can help you

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

brandon has 4344 video games.  

step-by-step explanation

7373 - 2929 = 4344

pls let me know if it was correct