20+D+60+15+20=130+35+2d+0

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Solution for 20+D+60+15+20=130+35+2d+0 equation: 


Simplifying
20 + D + 60 + 15 + 20 = 130 + 35 + 2d + 0

Reorder the terms:
20 + 60 + 15 + 20 + D = 130 + 35 + 2d + 0

Combine like terms: 20 + 60 = 80
80 + 15 + 20 + D = 130 + 35 + 2d + 0

Combine like terms: 80 + 15 = 95
95 + 20 + D = 130 + 35 + 2d + 0

Combine like terms: 95 + 20 = 115
115 + D = 130 + 35 + 2d + 0

Reorder the terms:
115 + D = 130 + 35 + 0 + 2d

Combine like terms: 130 + 35 = 165
115 + D = 165 + 0 + 2d

Combine like terms: 165 + 0 = 165
115 + D = 165 + 2d

Solving
115 + D = 165 + 2d

Solving for variable 'D'.

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

Add '-115' to each side of the equation.
115 + -115 + D = 165 + -115 + 2d

Combine like terms: 115 + -115 = 0
0 + D = 165 + -115 + 2d
D = 165 + -115 + 2d

Combine like terms: 165 + -115 = 50
D = 50 + 2d

Simplifying
D = 50 + 2d

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