Solve for b -9-b=8b

$- 9 - b = 8 b$

Step 1

Move all terms containing $b$ to the left side of the equation.

Subtract $8 b$ from both sides of the equation.

$- 9 - b - 8 b = 0$

Subtract $8 b$ from $- b$ .

$- 9 - 9 b = 0$

Step 2

Add $9$ to both sides of the equation.

$- 9 b = 9$

Step 3

Divide each term in $- 9 b = 9$ by $- 9$ and simplify.

Divide each term in $- 9 b = 9$ by $- 9$ .

$\frac{- 9 b}{- 9} = \frac{9}{- 9}$

Simplify the left side.

Cancel the common factor of $- 9$ .

Cancel the common factor.

$\frac{- 9 b}{- 9} = \frac{9}{- 9}$

Divide $b$ by $1$ .

$b = \frac{9}{- 9}$

Simplify the right side.

Divide $9$ by $- 9$ .

$b = - 1$