2(D-9)=10

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Solution for 2(D-9)=10 equation: 


Simplifying
2(D + -9) = 10

Reorder the terms:
2(-9 + D) = 10
(-9 * 2 + D * 2) = 10
(-18 + 2D) = 10

Solving
-18 + 2D = 10

Solving for variable 'D'.

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

Add '18' to each side of the equation.
-18 + 18 + 2D = 10 + 18

Combine like terms: -18 + 18 = 0
0 + 2D = 10 + 18
2D = 10 + 18

Combine like terms: 10 + 18 = 28
2D = 28

Divide each side by '2'.
D = 14

Simplifying
D = 14

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