Step-by-step explanation:
<h2>Answer:-</h2>
![\tt{y = 4x+8x}](https://tex.z-dn.net/?f=%5Ctt%7By%20%3D%204x%2B8x%7D)
First, we need to add up the x.
We know that 4+8 = 12, so
![\tt{4x+8x=12x}](https://tex.z-dn.net/?f=%5Ctt%7B4x%2B8x%3D12x%7D)
Now, equating it to y,
![\tt{y = 12x}](https://tex.z-dn.net/?f=%5Ctt%7By%20%3D%2012x%7D)
Now, if I multiply
on both sides,
I get,
Now, as 12 got cancelled , I got the final answer as
Hope it helps :)
The lcm of 6 and 18 is C.)18
We know that a triangle is 180 degrees.
![102+39=141](https://tex.z-dn.net/?f=102%2B39%3D141)
![180-141=39](https://tex.z-dn.net/?f=180-141%3D39)
x=39