8r+r=9

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Solution for 8r+r=9 equation: 


Simplifying
8r + r = 9

Combine like terms: 8r + r = 9r
9r = 9

Solving
9r = 9

Solving for variable 'r'.

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

Divide each side by '9'.
r = 1

Simplifying
r = 1

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