3[1-2d]=9

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Solution for 3[1-2d]=9 equation: 


Simplifying
3[1 + -2d] = 9
[1 * 3 + -2d * 3] = 9
[3 + -6d] = 9

Solving
3 + -6d = 9

Solving for variable 'd'.

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

Add '-3' to each side of the equation.
3 + -3 + -6d = 9 + -3

Combine like terms: 3 + -3 = 0
0 + -6d = 9 + -3
-6d = 9 + -3

Combine like terms: 9 + -3 = 6
-6d = 6

Divide each side by '-6'.
d = -1

Simplifying
d = -1

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