Let x, y,z be (non-zero) vectors and suppose =−2x−4y+3z. If z=x+2y, then = 1 x+ 2 y. Using the calculation above, mark the statements below that must be true.

A. Span(w, y) = Span(w, x, y)
B. Span(w, z) = Span(x, z)
C. Span(w, x) = Span(w, x, z)
D. Span(w, x) = Span(w, z)
E. Span(y, z) = Span(x, y, z)

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.]