1/(b+2)+1/(b+2)=3/(b+1)

Answer 1

Is this right?
(b+1)+(b+1)=b+3
2b+2=b+3
b+2=3
b=1

Answer 2

1/(b+2)+1/(b+2)=3/(b+1)

Combine.

2/(b+2) = 3/(b+1)

Multiply both sides by (b+2) and (b+1).

2(b+1) = 3(b+2)

2b + 2 = 3b + 6

-4 = b