D-(20)=2.5

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Solution for D-(20)=2.5 equation: 


Simplifying
D + -1(20) = 2.5

Multiply -1 * 20
D + -20 = 2.5

Reorder the terms:
-20 + D = 2.5

Solving
-20 + D = 2.5

Solving for variable 'D'.

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

Add '20' to each side of the equation.
-20 + 20 + D = 2.5 + 20

Combine like terms: -20 + 20 = 0
0 + D = 2.5 + 20
D = 2.5 + 20

Combine like terms: 2.5 + 20 = 22.5
D = 22.5

Simplifying
D = 22.5

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