Answer:
I believe that the answer you need is x=0.42
Step-by-step explanation:
x=9
Since this is an equilateral triangle, all angles are equal to (180/3) 60 degrees
<N = 60 = 7x-3
60 = 7x-3
Add 3 to each side
60+3 = 7x-3+3
63 =7x
Divide by 7
63/7 =7x/7
9 =x
