r+21=527

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Solution for r+21=527 equation: 


Simplifying
r + 21 = 527

Reorder the terms:
21 + r = 527

Solving
21 + r = 527

Solving for variable 'r'.

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

Add '-21' to each side of the equation.
21 + -21 + r = 527 + -21

Combine like terms: 21 + -21 = 0
0 + r = 527 + -21
r = 527 + -21

Combine like terms: 527 + -21 = 506
r = 506

Simplifying
r = 506

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