ILL MARK BRAINLIEST

Answer:
Do it yourself or seach it up
Step-by-step explanation:
Answer:
7
Step-by-step explanation:
first,you need to create an eqaution and so since there are two bars,so its 2x-6=8
2x-6=8
+6=+6
cancel out(2x=14)
x=7
so, your answer is 7.hope this helps.