d+e=12

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Solution for d+e=12 equation: 


Simplifying
d + e = 12

Solving
d + e = 12

Solving for variable 'd'.

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

Add '-1e' to each side of the equation.
d + e + -1e = 12 + -1e

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

Simplifying
d = 12 + -1e

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