What is the value of x? 12x+34=9

A. 16 1/2

B. 16 3/4

C. 16 1/2

D. 4 1/2

(1/2x + 3/4 = 9 (original equation)

1/2x + 3/4 - 3/4 = 9 - 3/4 (subtracting 3/4 from the left so that way the numbers can be on one side)

1/2x = 8 1/4 or 33/4 (after subtracting 3/4 from 9)

4x = 66 (this is cross multiplying, you multiply 1x4 and 2 x33)

x = 66/4, x = 33/2

x = 16 1/2