4*(D+5)-D=65

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Solution for 4*(D+5)-D=65 equation:


Simplifying
4(D + 5) + -1D = 65

Reorder the terms:
4(5 + D) + -1D = 65
(5 * 4 + D * 4) + -1D = 65
(20 + 4D) + -1D = 65

Combine like terms: 4D + -1D = 3D
20 + 3D = 65

Solving
20 + 3D = 65

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 + 3D = 65 + -20

Combine like terms: 20 + -20 = 0
0 + 3D = 65 + -20
3D = 65 + -20

Combine like terms: 65 + -20 = 45
3D = 45

Divide each side by '3'.
D = 15

Simplifying
D = 15

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