Practice problem
Combine like terms if y=xy=xy=x: x−2xz+y−yz.x-2xz+y-yz.x−2xz+y−yz.
Mark all equivalent expressions (given that y=xy=xy=x).
2x−3yz2x-3yz2x−3yz
2y−3xz2y-3xz2y−3xz
2x−3xz2x-3xz2x−3xz
2y−3yz2y-3yz2y−3yz
All of the above
Type a concept, like “slope” or “photosynthesis”.