

Multiply both sides of the equation by
, the least common multiple of b-1,b+1.

Use the distributive property to multiply b+1 by 11.

Subtract 6b from both sides.

Combine 11b and -6b to get 5b.

Subtract 11 from both sides.

Subtract 11 from -6 to get -17.

Divide both sides by 5.

=> The correct answer is
or
(✓).
__________
Hope it helps.
RainbowSalt2222