-1=-2d

Solution for -1=-2d equation:

Simplifying
-1 = -2d

Solving
-1 = -2d

Solving for variable 'd'.

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

Add '2d' to each side of the equation.
-1 + 2d = -2d + 2d

Combine like terms: -2d + 2d = 0
-1 + 2d = 0

Add '1' to each side of the equation.
-1 + 1 + 2d = 0 + 1

Combine like terms: -1 + 1 = 0
0 + 2d = 0 + 1
2d = 0 + 1

Combine like terms: 0 + 1 = 1
2d = 1

Divide each side by '2'.
d = 0.5

Simplifying
d = 0.5