-2d-1.7=3.9

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Solution for -2d-1.7=3.9 equation: 


Simplifying
-2d + -1.7 = 3.9

Reorder the terms:
-1.7 + -2d = 3.9

Solving
-1.7 + -2d = 3.9

Solving for variable 'd'.

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

Add '1.7' to each side of the equation.
-1.7 + 1.7 + -2d = 3.9 + 1.7

Combine like terms: -1.7 + 1.7 = 0.0
0.0 + -2d = 3.9 + 1.7
-2d = 3.9 + 1.7

Combine like terms: 3.9 + 1.7 = 5.6
-2d = 5.6

Divide each side by '-2'.
d = -2.8

Simplifying
d = -2.8

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