x=12 is the correct answer. First you had to divide by 6 from both sides of equation, and it gave us, [tex]\frac{6x}{6}=\frac{72}{6}[/tex]. And finally simplify, and it gave us the answer is [tex]\frac{72}{6}=12[/tex], or 12*6=72, and x=12 is the correct answer. Hope this helps! And thank you for posting your question at here on brainly, and have a great day. -Charlie