d+d+2+d+4+d+6=

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Solution for d+d+2+d+4+d+6= equation:


Simplifying
d + d + 2 + d + 4 + d + 6 = 0

Reorder the terms:
2 + 4 + 6 + d + d + d + d = 0

Combine like terms: 2 + 4 = 6
6 + 6 + d + d + d + d = 0

Combine like terms: 6 + 6 = 12
12 + d + d + d + d = 0

Combine like terms: d + d = 2d
12 + 2d + d + d = 0

Combine like terms: 2d + d = 3d
12 + 3d + d = 0

Combine like terms: 3d + d = 4d
12 + 4d = 0

Solving
12 + 4d = 0

Solving for variable 'd'.

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

Add '-12' to each side of the equation.
12 + -12 + 4d = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 4d = 0 + -12
4d = 0 + -12

Combine like terms: 0 + -12 = -12
4d = -12

Divide each side by '4'.
d = -3

Simplifying
d = -3

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