12=-d+8

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Solution for 12=-d+8 equation:


Simplifying
12 = -1d + 8

Reorder the terms:
12 = 8 + -1d

Solving
12 = 8 + -1d

Solving for variable 'd'.

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

Add 'd' to each side of the equation.
12 + d = 8 + -1d + d

Combine like terms: -1d + d = 0
12 + d = 8 + 0
12 + d = 8

Add '-12' to each side of the equation.
12 + -12 + d = 8 + -12

Combine like terms: 12 + -12 = 0
0 + d = 8 + -12
d = 8 + -12

Combine like terms: 8 + -12 = -4
d = -4

Simplifying
d = -4

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