d-20=77

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Solution for d-20=77 equation: 


Simplifying
d + -20 = 77

Reorder the terms:
-20 + d = 77

Solving
-20 + d = 77

Solving for variable 'd'.

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

Add '20' to each side of the equation.
-20 + 20 + d = 77 + 20

Combine like terms: -20 + 20 = 0
0 + d = 77 + 20
d = 77 + 20

Combine like terms: 77 + 20 = 97
d = 97

Simplifying
d = 97

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