You would need to include the center of rotation. For many problems, the center is usually the origin (0,0). This is a default assumed center. Though the center could easily be any other point.
In addition, you also need the amount of rotation that is being applied (eg: 90 degrees).
The last bit of info you need is whether you're going clockwise or counterclockwise. For 180 degree rotations, it doesn't matter, but for everything else it does matter.
If you're trying to solve for x, you need to use the quadratic formula.
Plug in the numbers from the standard form of a quadratic equation
(which is

)
From here, this solves down to
Take the square root of 196, which is 14
Now, you can solve for both the + and - variations on the equation.
The solutions to your equation are 1.5 and 5/8 (probably)
Answer:
the expression + 12
Step-by-step explanation:
anything that has 'than' after it will be comparing "a" and "b" will be switched
a: 12
b: the expression
a more than b
it'll become
'b + a'
because its comparing both variables of which one is greater than the other in terms of quantity
The answer is -6. Half of -6 is -3 and -6 + 3 = -3