Answer:
Step-by-step explanation:

<h2>Step-by-step explanation:</h2>
-5/7 + x = -1
(-5+7x)/7 = -1
-5 + 7x = -7
7x = -2
<h2>x = -2/7</h2>
please change the digit as per ur QUESTION
-3n=26
n=26/3
It is the fraction form.
The answer would be A. There is a phase shift to the left. Because you are adding pi/6.