d+-3.5=-6.9

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Solution for d+-3.5=-6.9 equation: 


Simplifying
d + -3.5 = -6.9

Reorder the terms:
-3.5 + d = -6.9

Solving
-3.5 + d = -6.9

Solving for variable 'd'.

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

Add '3.5' to each side of the equation.
-3.5 + 3.5 + d = -6.9 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + d = -6.9 + 3.5
d = -6.9 + 3.5

Combine like terms: -6.9 + 3.5 = -3.4
d = -3.4

Simplifying
d = -3.4

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