3(2d+1)=9

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Solution for 3(2d+1)=9 equation: 


Simplifying
3(2d + 1) = 9

Reorder the terms:
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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