Answer:
2n-4 (8)
Step-by-step explanation:
Let's simplify step-by-step
n+8+n−12
=2n−4
How we got 8:
Add 4 to both sides of the equation
2n-4=8
2n-4+4=8+4
Simplify
2n−4+4=8+4
2=8+4
2n=8+4
2=12
Divide both sides of the equation by the same term
2=12
2/2=12/2
Simplify
2n/2=12/2
=12/2
n=12/2
=6
Soultion
n=6
