The answer is 7/5. I attached the work below.
Answer: 1
Step-by-step explanation: Because it is
Answer:

Firstly, multiply the number and variable in the perenthesis. Then move the variable on it's own side of the equation. The simplify.
Set up the equation:
x=(3x-70)
0=2x-70
2x=70
x=35
Now to find LMN we plug it back in:
3(35)-70=35
Final answer: 35 degrees
:)