13d-9d-d+2d-4d=12

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Solution for 13d-9d-d+2d-4d=12 equation: 


Simplifying
13d + -9d + -1d + 2d + -4d = 12

Combine like terms: 13d + -9d = 4d
4d + -1d + 2d + -4d = 12

Combine like terms: 4d + -1d = 3d
3d + 2d + -4d = 12

Combine like terms: 3d + 2d = 5d
5d + -4d = 12

Combine like terms: 5d + -4d = 1d
1d = 12

Solving
1d = 12

Solving for variable 'd'.

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

Divide each side by '1'.
d = 12

Simplifying
d = 12

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