d-7.7=-9.9

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Solution for d-7.7=-9.9 equation: 


Simplifying
d + -7.7 = -9.9

Reorder the terms:
-7.7 + d = -9.9

Solving
-7.7 + d = -9.9

Solving for variable 'd'.

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

Add '7.7' to each side of the equation.
-7.7 + 7.7 + d = -9.9 + 7.7

Combine like terms: -7.7 + 7.7 = 0.0
0.0 + d = -9.9 + 7.7
d = -9.9 + 7.7

Combine like terms: -9.9 + 7.7 = -2.2
d = -2.2

Simplifying
d = -2.2

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