If 4 more than two times a certain number is 3 less than the number, what is the number

3

Step-by-step explanation:

If 4 less than 3 times a certain number is 2 more than the number

Let the number be x

First, three times of number is 3x

Then 4 less will be (3x - 4)

Two more than number is (x + 2)

Hence the algebraic equation will be

3x - 4 = x + 2

Now solving this equation

3x - 4 = x + 2

3x - x = 2 + 4

2x = 6

x = 6 / 2

x = 3

Thus the number is 3

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