You can't do past field ops.
No. You can do just the current field op.
You can't. You need 2 equations to solve for 2 unknowns
7
4
2y = 4 (divide both sides by 2 to solve) y = 2
the answer is 4
2 is
78
Elementary - 2012 Solve for X 2-2 is rated/received certificates of: USA:TV-14
You cannot solve it since it is not a true equation.
turn on the game and solve it yourself
2