I got you Bro The answer Is easy is 3Х-12=0 I will explain how I got the answer. And if you are using a computer go to CYMATH is give you 90-100 all the answer of math you just put the equation and you got the answer and how you solve.
I hope what I do help you Bro
1) Drop the absolute value, since this equation sums to zero.
3Х-12=0
2) Solve the 1st equation: 3Х-12=0 (How)
Х=4
(How)
1) Add 12 to both sides
3Х=12
2) Divide both sides by 3
Х=(12/3)
3) Simplify (12/3) to 4
Answer: Х=4
