Well, the standard equation is in the form:
ax + bx = c (constant).
Thus, x and b must be isolated together on one side with the constant on the other. The equation which satisfies this is:
A. -2x + y = 5
Pretty sure the answer is k
No 11.473 is greater then 11.447
Yes.
9m-3m=1+19
6m=20
m=20/6=10/3