Practice problem
If x=2yx=2yx=2y, y=12 zy=\frac{1}{2}\ zy=21 z, and z=4z=4z=4, find the value of 6xy+3z−4yz.6xy+3z-4yz.6xy+3z−4yz.
303030
292929
282828
272727
Type a concept, like “slope” or “photosynthesis”.
