3[d+12]=8-4d

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Solution for 3[d+12]=8-4d equation:


Simplifying
3[d + 12] = 8 + -4d

Reorder the terms:
3[12 + d] = 8 + -4d
[12 * 3 + d * 3] = 8 + -4d
[36 + 3d] = 8 + -4d

Solving
36 + 3d = 8 + -4d

Solving for variable 'd'.

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

Add '4d' to each side of the equation.
36 + 3d + 4d = 8 + -4d + 4d

Combine like terms: 3d + 4d = 7d
36 + 7d = 8 + -4d + 4d

Combine like terms: -4d + 4d = 0
36 + 7d = 8 + 0
36 + 7d = 8

Add '-36' to each side of the equation.
36 + -36 + 7d = 8 + -36

Combine like terms: 36 + -36 = 0
0 + 7d = 8 + -36
7d = 8 + -36

Combine like terms: 8 + -36 = -28
7d = -28

Divide each side by '7'.
d = -4

Simplifying
d = -4

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