What is the value of x in the equation 8 + 4 = 2 (x minus 1) ?

x = 7

Step-by-step explanation:

The equation is 8+4 = 2 (x-1)

Distribute into the parenthesis.

8+4 = 2x-2

Now, add.

12 = 2x-2

Add 2 to both sides.

12 = 2x-2

+2 + 2

Then, divide by 2 to both sides to isolate the variable.

14 = 2x

2 2

x=7