3d+4d+d-4-2d=0

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Solution for 3d+4d+d-4-2d=0 equation:


Simplifying
3d + 4d + d + -4 + -2d = 0

Reorder the terms:
-4 + 3d + 4d + d + -2d = 0

Combine like terms: 3d + 4d = 7d
-4 + 7d + d + -2d = 0

Combine like terms: 7d + d = 8d
-4 + 8d + -2d = 0

Combine like terms: 8d + -2d = 6d
-4 + 6d = 0

Solving
-4 + 6d = 0

Solving for variable 'd'.

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

Add '4' to each side of the equation.
-4 + 4 + 6d = 0 + 4

Combine like terms: -4 + 4 = 0
0 + 6d = 0 + 4
6d = 0 + 4

Combine like terms: 0 + 4 = 4
6d = 4

Divide each side by '6'.
d = 0.6666666667

Simplifying
d = 0.6666666667

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