0.2(1.2d+0.3)=

Solution for 0.2(1.2d+0.3)= equation:

Simplifying
0.2(1.2d + 0.3) = 0

Reorder the terms:
0.2(0.3 + 1.2d) = 0
(0.3 * 0.2 + 1.2d * 0.2) = 0
(0.06 + 0.24d) = 0

Solving
0.06 + 0.24d = 0

Solving for variable 'd'.

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

Add '-0.06' to each side of the equation.
0.06 + -0.06 + 0.24d = 0 + -0.06

Combine like terms: 0.06 + -0.06 = 0.00
0.00 + 0.24d = 0 + -0.06
0.24d = 0 + -0.06

Combine like terms: 0 + -0.06 = -0.06
0.24d = -0.06

Divide each side by '0.24'.
d = -0.25

Simplifying
d = -0.25