-7d+4d+3D=40

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Solution for -7d+4d+3D=40 equation: 


Simplifying
-7d + 4d + 3D = 40

Reorder the terms:
3D + -7d + 4d = 40

Combine like terms: -7d + 4d = -3d
3D + -3d = 40

Solving
3D + -3d = 40

Solving for variable 'D'.

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

Add '3d' to each side of the equation.
3D + -3d + 3d = 40 + 3d

Combine like terms: -3d + 3d = 0
3D + 0 = 40 + 3d
3D = 40 + 3d

Divide each side by '3'.
D = 13.33333333 + d

Simplifying
D = 13.33333333 + d

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