3[2d-1]=15

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Solution for 3[2d-1]=15 equation: 


Simplifying
3[2d + -1] = 15

Reorder the terms:
3[-1 + 2d] = 15
[-1 * 3 + 2d * 3] = 15
[-3 + 6d] = 15

Solving
-3 + 6d = 15

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 = 15 + 3

Combine like terms: -3 + 3 = 0
0 + 6d = 15 + 3
6d = 15 + 3

Combine like terms: 15 + 3 = 18
6d = 18

Divide each side by '6'.
d = 3

Simplifying
d = 3

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