-1=-8*a

Solution for -1=-8*a equation:

Simplifying
-1 = -8a

Solving
-1 = -8a

Solving for variable 'a'.

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

Add '8a' to each side of the equation.
-1 + 8a = -8a + 8a

Combine like terms: -8a + 8a = 0
-1 + 8a = 0

Add '1' to each side of the equation.
-1 + 1 + 8a = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 8a = 0 + 1
8a = 0 + 1

Combine like terms: 0 + 1 = 1
8a = 1

Divide each side by '8'.
a = 0.125

Simplifying
a = 0.125