r+40=82

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Solution for r+40=82 equation: 


Simplifying
r + 40 = 82

Reorder the terms:
40 + r = 82

Solving
40 + r = 82

Solving for variable 'r'.

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

Add '-40' to each side of the equation.
40 + -40 + r = 82 + -40

Combine like terms: 40 + -40 = 0
0 + r = 82 + -40
r = 82 + -40

Combine like terms: 82 + -40 = 42
r = 42

Simplifying
r = 42

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