Hi there!
If you solve for [tex]x[/tex] in this problem you would end up with a result of [tex]\boxed{x = 2.7}[/tex]. To find [tex]x[/tex] you need do the following:
First, subtract 11.45 from both sides:
[tex]-1.2x+11.45-11.45=8.21-11.45[/tex]
[tex]-1.2x=-3.24[/tex]
Next, divide both sides by -1.2:
[tex] \frac{-1.2x}{-1.2} = \frac{-3.24}{-1.2} [/tex]
To get the end result of:
[tex]\boxed{x = 2.7}[/tex]
-Your friend, ASIAX