I'm having trouble finishing evaluating the expression b+1/6=-1/3

Answer 1

b+1/6=-1/3

Subtract 1/6 from both sides

b = - 1/3 - 1/6

b = -1/2

Answer 2

Solve for b?
add a -1/6 to both sides of the equation.

You have to combine -1/6 and -1/3
You need a common denomiator of 6.