Solve for m 7m-4-9m-36=0

$7 m - 4 - 9 m - 36 = 0$

Simplify $7 m - 4 - 9 m - 36$ .

Subtract $9 m$ from $7 m$ .

$- 2 m - 4 - 36 = 0$

Subtract $36$ from $- 4$ .

$- 2 m - 40 = 0$

Add $40$ to both sides of the equation.

$- 2 m = 40$

Divide each term in $- 2 m = 40$ by $- 2$ and simplify.

Divide each term in $- 2 m = 40$ by $- 2$ .

$\frac{- 2 m}{- 2} = \frac{40}{- 2}$

Simplify the left side.

Cancel the common factor of $- 2$ .

Cancel the common factor.

$\frac{- 2 m}{- 2} = \frac{40}{- 2}$

Divide $m$ by $1$ .

$m = \frac{40}{- 2}$

Simplify the right side.

Divide $40$ by $- 2$ .

$m = - 20$