-3.5d-19.91=-1.1d+19.39-12.18

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Solution for -3.5d-19.91=-1.1d+19.39-12.18 equation: 


Simplifying
-3.5d + -19.91 = -1.1d + 19.39 + -12.18

Reorder the terms:
-19.91 + -3.5d = -1.1d + 19.39 + -12.18

Reorder the terms:
-19.91 + -3.5d = 19.39 + -12.18 + -1.1d

Combine like terms: 19.39 + -12.18 = 7.21
-19.91 + -3.5d = 7.21 + -1.1d

Solving
-19.91 + -3.5d = 7.21 + -1.1d

Solving for variable 'd'.

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

Add '1.1d' to each side of the equation.
-19.91 + -3.5d + 1.1d = 7.21 + -1.1d + 1.1d

Combine like terms: -3.5d + 1.1d = -2.4d
-19.91 + -2.4d = 7.21 + -1.1d + 1.1d

Combine like terms: -1.1d + 1.1d = 0.0
-19.91 + -2.4d = 7.21 + 0.0
-19.91 + -2.4d = 7.21

Add '19.91' to each side of the equation.
-19.91 + 19.91 + -2.4d = 7.21 + 19.91

Combine like terms: -19.91 + 19.91 = 0.00
0.00 + -2.4d = 7.21 + 19.91
-2.4d = 7.21 + 19.91

Combine like terms: 7.21 + 19.91 = 27.12
-2.4d = 27.12

Divide each side by '-2.4'.
d = -11.3

Simplifying
d = -11.3

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