To solve for m in the equation 7m - 4 - 9m - 36 = 0, we will follow the steps below:
1. Combine like terms on the left side of the equation:
(7m - 9m) - (4 + 36) = 0
-2m - 40 = 0
2. Add 40 to both sides of the equation to isolate the term with m:
-2m - 40 + 40 = 0 + 40
-2m = 40
3. Divide both sides of the equation by -2 to solve for m:
(-2m) / -2 = 40 / -2
m = -20
Therefore, the solution to the equation 7m - 4 - 9m - 36 = 0 is m = -20.