5d+15d+d=120

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Solution for 5d+15d+d=120 equation: 


Simplifying
5d + 15d + d = 120

Combine like terms: 5d + 15d = 20d
20d + d = 120

Combine like terms: 20d + d = 21d
21d = 120

Solving
21d = 120

Solving for variable 'd'.

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

Divide each side by '21'.
d = 5.714285714

Simplifying
d = 5.714285714

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