Question

Solve for b.

2b + 9 = b

b =

Answer 1

-9

Explanation:

9=b-2b

9=-b

divide both sides by -

b=-9

Answer 2

`\boxed{b = 9}`

Explanation:

`= > 2b + 9 = b \\ \\ = > 2b - b + 9 = 0 \\ \\ = > b + 9 = 0 \\ \\ = > b = - 9`