12d+3d+5d=40

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Solution for 12d+3d+5d=40 equation: 


Simplifying
12d + 3d + 5d = 40

Combine like terms: 12d + 3d = 15d
15d + 5d = 40

Combine like terms: 15d + 5d = 20d
20d = 40

Solving
20d = 40

Solving for variable 'd'.

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

Divide each side by '20'.
d = 2

Simplifying
d = 2

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