Which equation is equivalent to 11x - (2-x) =51 ?

A. 13x = 51

B. 12x = 53

C. 12x = 49

D. 10x = 53

Expanding the expression (2-x) gives:

11x - 2 + x = 51

Combining like terms on the left side gives:

12x - 2 = 51

Adding 2 to both sides gives:

12x = 53

Therefore, the equation that is equivalent to 11x - (2-x) =51 is option B. 12x = 53.