89+r=

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Solution for 89+r= equation:


Simplifying
89 + r = 0

Solving
89 + r = 0

Solving for variable 'r'.

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

Add '-89' to each side of the equation.
89 + -89 + r = 0 + -89

Combine like terms: 89 + -89 = 0
0 + r = 0 + -89
r = 0 + -89

Combine like terms: 0 + -89 = -89
r = -89

Simplifying
r = -89

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