12-11a=45

are asking how to answer the problem?

12-11a=45

-11a = 45 - 12
-11a = 33
a = 33/-11
a = -3

To solve the equation 12 - 11a = 45, we want to isolate the variable "a" on one side of the equation. Here's how to do it:

1. Start by subtracting 12 from both sides of the equation:
12 - 11a - 12 = 45 - 12
-11a = 33

2. Next, divide both sides of the equation by -11 to solve for "a":
(-11a) / -11 = 33 / -11
a = -3

Therefore, the solution to the equation 12 - 11a = 45 is a = -3.