0.2(1-d)=2(4+0.1d)

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Solution for 0.2(1-d)=2(4+0.1d) equation: 


Simplifying
0.2(1 + -1d) = 2(4 + 0.1d)
(1 * 0.2 + -1d * 0.2) = 2(4 + 0.1d)
(0.2 + -0.2d) = 2(4 + 0.1d)
0.2 + -0.2d = (4 * 2 + 0.1d * 2)
0.2 + -0.2d = (8 + 0.2d)

Solving
0.2 + -0.2d = 8 + 0.2d

Solving for variable 'd'.

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

Add '-0.2d' to each side of the equation.
0.2 + -0.2d + -0.2d = 8 + 0.2d + -0.2d

Combine like terms: -0.2d + -0.2d = -0.4d
0.2 + -0.4d = 8 + 0.2d + -0.2d

Combine like terms: 0.2d + -0.2d = 0.0
0.2 + -0.4d = 8 + 0.0
0.2 + -0.4d = 8

Add '-0.2' to each side of the equation.
0.2 + -0.2 + -0.4d = 8 + -0.2

Combine like terms: 0.2 + -0.2 = 0.0
0.0 + -0.4d = 8 + -0.2
-0.4d = 8 + -0.2

Combine like terms: 8 + -0.2 = 7.8
-0.4d = 7.8

Divide each side by '-0.4'.
d = -19.5

Simplifying
d = -19.5

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