It's
<span>c. P’ = (5, –7)
(both coordinate signs get flipped)
</span>
An equation that describes a known relationship among quantities (such as temperature) is called a formula. <span>Formulas include more than one variable and are written so that one variable is already isolated. To find the value of this variable, you need to evaluate the expression on the other side of this variable. The variables in the expression will contain values. Formulas can be solved in a single step or multiple steps. Multiple step formulas consist of a series of steps and are solved one step at a time. </span>
Answer:
X=10
Step-by-step explanation:
Given,
equation 2(x-4)=12
first divide by 2 on both sides

then the resultant equation will be as

above equation explains the first step in this solution
therfore, 
The value of x is 10.