7d-d+3e+12=0

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Solution for 7d-d+3e+12=0 equation:


Simplifying
7d + -1d + 3e + 12 = 0

Reorder the terms:
12 + 7d + -1d + 3e = 0

Combine like terms: 7d + -1d = 6d
12 + 6d + 3e = 0

Solving
12 + 6d + 3e = 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 + 6d + -12 + 3e = 0 + -12

Reorder the terms:
12 + -12 + 6d + 3e = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 6d + 3e = 0 + -12
6d + 3e = 0 + -12

Combine like terms: 0 + -12 = -12
6d + 3e = -12

Add '-3e' to each side of the equation.
6d + 3e + -3e = -12 + -3e

Combine like terms: 3e + -3e = 0
6d + 0 = -12 + -3e
6d = -12 + -3e

Divide each side by '6'.
d = -2 + -0.5e

Simplifying
d = -2 + -0.5e

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