Respuesta :

we are given

[tex] \frac{A}{2}-\frac{1}{2}=-6 [/tex]

firstly ,we will multiply both sides by 2

[tex] 2*\frac{A}{2}-2*\frac{1}{2}=2*-6 [/tex]

now, we can simplify it

and we get

[tex] A-1=-12 [/tex]

now, we can solve for A

[tex] A=-11 [/tex]..........Answer

We want to solve for a, correct?

If that is so, then the left side is just standard subtracting fractions:

Since the fractions on the left side have a common denominator already, we can just combine them and write (a - 1)/2.

The right side, -6, remains the same.

Now, put it together:

(a - 1)/2 = -6

Multiply both sides by 2:

a - 1 = -12

Add both sides by 1:

a = -11

So, the answer is a = -11.