Solve for the variable. 1) -12=(-4x)/3

2) 5x+8=23

3) 5(x-8)+6x=-117

4) 5(x+2)=10+5x

5) 7/8 (48x-8)+4=3(5x-19)

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

step-by-step explanation: