d+3d+3d-2d-4d=20

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Solution for d+3d+3d-2d-4d=20 equation: 


Simplifying
d + 3d + 3d + -2d + -4d = 20

Combine like terms: d + 3d = 4d
4d + 3d + -2d + -4d = 20

Combine like terms: 4d + 3d = 7d
7d + -2d + -4d = 20

Combine like terms: 7d + -2d = 5d
5d + -4d = 20

Combine like terms: 5d + -4d = 1d
1d = 20

Solving
1d = 20

Solving for variable 'd'.

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

Divide each side by '1'.
d = 20

Simplifying
d = 20

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