30r-20s=18

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Solution for 30r-20s=18 equation: 


Simplifying
30r + -20s = 18

Solving
30r + -20s = 18

Solving for variable 'r'.

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

Add '20s' to each side of the equation.
30r + -20s + 20s = 18 + 20s

Combine like terms: -20s + 20s = 0
30r + 0 = 18 + 20s
30r = 18 + 20s

Divide each side by '30'.
r = 0.6 + 0.6666666667s

Simplifying
r = 0.6 + 0.6666666667s

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