r-28=9

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Solution for r-28=9 equation: 


Simplifying
r + -28 = 9

Reorder the terms:
-28 + r = 9

Solving
-28 + r = 9

Solving for variable 'r'.

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

Add '28' to each side of the equation.
-28 + 28 + r = 9 + 28

Combine like terms: -28 + 28 = 0
0 + r = 9 + 28
r = 9 + 28

Combine like terms: 9 + 28 = 37
r = 37

Simplifying
r = 37

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