d+15+20=120

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Solution for d+15+20=120 equation: 


Simplifying
d + 15 + 20 = 120

Reorder the terms:
15 + 20 + d = 120

Combine like terms: 15 + 20 = 35
35 + d = 120

Solving
35 + d = 120

Solving for variable 'd'.

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

Add '-35' to each side of the equation.
35 + -35 + d = 120 + -35

Combine like terms: 35 + -35 = 0
0 + d = 120 + -35
d = 120 + -35

Combine like terms: 120 + -35 = 85
d = 85

Simplifying
d = 85

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