Answer:
x
-4
Explanation:
1. 3x-12
7x+4
add 12 to 12 to cancel it out, add 12 to 4.
2. 3x
7x+16
subtract 7x from 7x to cancel it out, subtract 7x from 3x.
3. -4x
16
divide -4 from -4x to cancel it out, divide -4 from 16.
4. x
-4
since division was involved, the inequality symbol needs to be reversed.
ANSWER: x
-4