To find the value of the remaining variable in the formula P = 2L + 2W, we substitute the given values and use the approximation of π as 3.14.
Given:
L = 9
W = 7
Substituting these values into the formula:
P = 2(9) + 2(7)
P = 18 + 14
P = 32
Therefore, the value of the remaining variable, which is the perimeter (P) of the rectangle, is 32.