.25(2d+1)=

Solution for .25(2d+1)= equation:

Simplifying
0.25(2d + 1) = 0

Reorder the terms:
0.25(1 + 2d) = 0
(1 * 0.25 + 2d * 0.25) = 0
(0.25 + 0.5d) = 0

Solving
0.25 + 0.5d = 0

Solving for variable 'd'.

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

Add '-0.25' to each side of the equation.
0.25 + -0.25 + 0.5d = 0 + -0.25

Combine like terms: 0.25 + -0.25 = 0.00
0.00 + 0.5d = 0 + -0.25
0.5d = 0 + -0.25

Combine like terms: 0 + -0.25 = -0.25
0.5d = -0.25

Divide each side by '0.5'.
d = -0.5

Simplifying
d = -0.5