m^2-m-4+m-5=0

Solution for m^2-m-4+m-5=0 equation:

Simplifying
m2 + -1m + -4 + m + -5 = 0

Reorder the terms:
-4 + -5 + -1m + m + m2 = 0

Combine like terms: -4 + -5 = -9
-9 + -1m + m + m2 = 0

Combine like terms: -1m + m = 0
-9 + 0 + m2 = 0
-9 + m2 = 0

Solving
-9 + m2 = 0

Solving for variable 'm'.

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

Add '9' to each side of the equation.
-9 + 9 + m2 = 0 + 9

Combine like terms: -9 + 9 = 0
0 + m2 = 0 + 9
m2 = 0 + 9

Combine like terms: 0 + 9 = 9
m2 = 9

Simplifying
m2 = 9

Take the square root of each side:
m = {-3, 3}