r-81=16

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Solution for r-81=16 equation: 


Simplifying
r + -81 = 16

Reorder the terms:
-81 + r = 16

Solving
-81 + r = 16

Solving for variable 'r'.

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

Add '81' to each side of the equation.
-81 + 81 + r = 16 + 81

Combine like terms: -81 + 81 = 0
0 + r = 16 + 81
r = 16 + 81

Combine like terms: 16 + 81 = 97
r = 97

Simplifying
r = 97

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