9r-2=80

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Solution for 9r-2=80 equation: 


Simplifying
9r + -2 = 80

Reorder the terms:
-2 + 9r = 80

Solving
-2 + 9r = 80

Solving for variable 'r'.

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

Add '2' to each side of the equation.
-2 + 2 + 9r = 80 + 2

Combine like terms: -2 + 2 = 0
0 + 9r = 80 + 2
9r = 80 + 2

Combine like terms: 80 + 2 = 82
9r = 82

Divide each side by '9'.
r = 9.111111111

Simplifying
r = 9.111111111

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