Step-by-step explanation:
[tex]6x - 24 + 2x + 12 = 180[/tex]
[tex]4x - 12 = 180[/tex]
[tex]4x = 180 + 12[/tex]
[tex]4x = 192[/tex]
[tex]x = \frac{192}{4} \\ [/tex]
[tex]x = 48[/tex]
