x^2 - 7x = -12
Add 12 to both sides.
Doing so, we get x^2 - 7x +12 = 0.
We now factor the left side.
Doing so, we get (x - 3) (x - 4) = 0.
Set each factor to 0 and solve for x.
x - 3 = 0
x = 3
x - 4 = 0
x = 4
Answer: Choice d
B is a translation, which is moving.
A is a rotation, and C is a reflection over the x-axis.
to solve this you will first subtract 8 from 84
you will get 76
now all you do is divide 76 by 4 and you will get 19
if you dont know what divideing is you can just subtract 4 from 76 until there is only 0 left
the answer is 19 if you forgot