12.1=-19.3-4d

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Solution for 12.1=-19.3-4d equation:


Simplifying
12.1 = -19.3 + -4d

Solving
12.1 = -19.3 + -4d

Solving for variable 'd'.

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

Add '4d' to each side of the equation.
12.1 + 4d = -19.3 + -4d + 4d

Combine like terms: -4d + 4d = 0
12.1 + 4d = -19.3 + 0
12.1 + 4d = -19.3

Add '-12.1' to each side of the equation.
12.1 + -12.1 + 4d = -19.3 + -12.1

Combine like terms: 12.1 + -12.1 = 0.0
0.0 + 4d = -19.3 + -12.1
4d = -19.3 + -12.1

Combine like terms: -19.3 + -12.1 = -31.4
4d = -31.4

Divide each side by '4'.
d = -7.85

Simplifying
d = -7.85

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