r+86=-13

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Solution for r+86=-13 equation: 


Simplifying
r + 86 = -13

Reorder the terms:
86 + r = -13

Solving
86 + r = -13

Solving for variable 'r'.

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

Add '-86' to each side of the equation.
86 + -86 + r = -13 + -86

Combine like terms: 86 + -86 = 0
0 + r = -13 + -86
r = -13 + -86

Combine like terms: -13 + -86 = -99
r = -99

Simplifying
r = -99

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