9r-9s=18

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Solution for 9r-9s=18 equation: 


Simplifying
9r + -9s = 18

Solving
9r + -9s = 18

Solving for variable 'r'.

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

Add '9s' to each side of the equation.
9r + -9s + 9s = 18 + 9s

Combine like terms: -9s + 9s = 0
9r + 0 = 18 + 9s
9r = 18 + 9s

Divide each side by '9'.
r = 2 + s

Simplifying
r = 2 + s

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