r+164=680

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Solution for r+164=680 equation: 


Simplifying
r + 164 = 680

Reorder the terms:
164 + r = 680

Solving
164 + r = 680

Solving for variable 'r'.

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

Add '-164' to each side of the equation.
164 + -164 + r = 680 + -164

Combine like terms: 164 + -164 = 0
0 + r = 680 + -164
r = 680 + -164

Combine like terms: 680 + -164 = 516
r = 516

Simplifying
r = 516

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