0.20[10d-5]=9

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Solution for 0.20[10d-5]=9 equation:


Simplifying
0.20[10d + -5] = 9

Reorder the terms:
0.20[-5 + 10d] = 9
[-5 * 0.20 + 10d * 0.20] = 9
[-1 + 2d] = 9

Solving
-1 + 2d = 9

Solving for variable 'd'.

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

Add '1' to each side of the equation.
-1 + 1 + 2d = 9 + 1

Combine like terms: -1 + 1 = 0
0 + 2d = 9 + 1
2d = 9 + 1

Combine like terms: 9 + 1 = 10
2d = 10

Divide each side by '2'.
d = 5

Simplifying
d = 5

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