Answer:
b = -a - 8
or
a = -b - 8
Step-by-step explanation:
So I am assuming you are simplifying this equation?
I would first multiply what is inside the parenthesis by 2-
8a + 12 - 4a + 10b + 20 - 6b
Add the as
8a - 4a = 4a
Add the bs
10b - 6b = 4b
And then add what is left
12 + 20 = 32
COmbine to get the equation
4a + 4b + 32
Then isolate one variable-
-4b = 4a + 32
And divide by -4
b = -a - 8
