Answer:
[tex] \huge \boxed{ \boxed{x = 8}}[/tex]
Step-by-step explanation:
to understand this
you need to know about:
tips and formulas:
- every angle of a rectangle is 90°
let's solve:
[tex]step - 1 : define \\ 12x - 6 = 90[/tex]
[tex]step - 2 : solve[/tex]
- [tex] \tt add \: 6 \: to \: both \: sides : \\ \tt12x - 6 + 6 = 90 + 6 \\ \tt 12x = 96[/tex]
- [tex] \tt divide \: both \: sides \: by \: 12 : \\ \tt \frac{12x}{12} = \frac{96}{12} \\ \tt \therefore x = 8[/tex]
