r-92=215

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Solution for r-92=215 equation: 


Simplifying
r + -92 = 215

Reorder the terms:
-92 + r = 215

Solving
-92 + r = 215

Solving for variable 'r'.

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

Add '92' to each side of the equation.
-92 + 92 + r = 215 + 92

Combine like terms: -92 + 92 = 0
0 + r = 215 + 92
r = 215 + 92

Combine like terms: 215 + 92 = 307
r = 307

Simplifying
r = 307

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