m^2-8+7=0

Solution for m^2-8+7=0 equation:

Simplifying
m2 + -8 + 7 = 0

Reorder the terms:
-8 + 7 + m2 = 0

Combine like terms: -8 + 7 = -1
-1 + m2 = 0

Solving
-1 + m2 = 0

Solving for variable 'm'.

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

Add '1' to each side of the equation.
-1 + 1 + m2 = 0 + 1

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

Combine like terms: 0 + 1 = 1
m2 = 1

Simplifying
m2 = 1

Take the square root of each side:
m = {-1, 1}