D-1.3=7.9

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Solution for D-1.3=7.9 equation: 


Simplifying
D + -1.3 = 7.9

Reorder the terms:
-1.3 + D = 7.9

Solving
-1.3 + D = 7.9

Solving for variable 'D'.

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

Add '1.3' to each side of the equation.
-1.3 + 1.3 + D = 7.9 + 1.3

Combine like terms: -1.3 + 1.3 = 0.0
0.0 + D = 7.9 + 1.3
D = 7.9 + 1.3

Combine like terms: 7.9 + 1.3 = 9.2
D = 9.2

Simplifying
D = 9.2

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