20=-d+20

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Solution for 20=-d+20 equation:


Simplifying
20 = -1d + 20

Reorder the terms:
20 = 20 + -1d

Add '-20' to each side of the equation.
20 + -20 = 20 + -20 + -1d

Combine like terms: 20 + -20 = 0
0 = 20 + -20 + -1d

Combine like terms: 20 + -20 = 0
0 = 0 + -1d
0 = -1d

Solving
0 = -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.
0 + d = -1d + d
Remove the zero:
d = -1d + d

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

Simplifying
d = 0

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