3+9(-4m-5)=

Solution for 3+9(-4m-5)= equation:

Simplifying
3 + 9(-4m + -5) = 0

Reorder the terms:
3 + 9(-5 + -4m) = 0
3 + (-5 * 9 + -4m * 9) = 0
3 + (-45 + -36m) = 0

Combine like terms: 3 + -45 = -42
-42 + -36m = 0

Solving
-42 + -36m = 0

Solving for variable 'm'.

Move all terms containing m to the left, all other terms to the right.

Add '42' to each side of the equation.
-42 + 42 + -36m = 0 + 42

Combine like terms: -42 + 42 = 0
0 + -36m = 0 + 42
-36m = 0 + 42

Combine like terms: 0 + 42 = 42
-36m = 42

Divide each side by '-36'.
m = -1.166666667

Simplifying
m = -1.166666667