3(D+1)=30

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Solution for 3(D+1)=30 equation: 


Simplifying
3(D + 1) = 30

Reorder the terms:
3(1 + D) = 30
(1 * 3 + D * 3) = 30
(3 + 3D) = 30

Solving
3 + 3D = 30

Solving for variable 'D'.

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

Add '-3' to each side of the equation.
3 + -3 + 3D = 30 + -3

Combine like terms: 3 + -3 = 0
0 + 3D = 30 + -3
3D = 30 + -3

Combine like terms: 30 + -3 = 27
3D = 27

Divide each side by '3'.
D = 9

Simplifying
D = 9

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