Answer:
1/2(6n - 12) = 3/4(4-8n)
3n - 6 = 3 - 6n
+6n +6n
9n - 6 = 3
+6 +6
9n = 9
n = 1
That means:
First step: Distributive property
Second step: Add 6n to both sides
Third step: Add 6 to both sides