Choose the equation that is based on the description “nine more than twelve times a number equals one.” 9x + 12 = 1 9x + 1 = 12 12x + 1 = 9 12x + 9 = 1

hope it you

step-by-step explanation:

sin(7pi/6 - pi/3)  

= sin(7pi/6 - 2pi/6)  

= sin(5pi/6)  

= sin(pi - pi/6)  

= sin(pi/6)  

= 1/2  

sin 7pi/6 - sin pi/3  

= sin (pi + pi/6) - sin pi/3  

= -sin pi/6 - sin pi/3  

= -1/2 - sqrt(3)/2  

= -(1+sqrt(3))2

answer: you need the equation in the question so i can answer it

step-by-step explanation: