2r+s=9

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Solution for 2r+s=9 equation: 


Simplifying
2r + s = 9

Solving
2r + s = 9

Solving for variable 'r'.

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

Add '-1s' to each side of the equation.
2r + s + -1s = 9 + -1s

Combine like terms: s + -1s = 0
2r + 0 = 9 + -1s
2r = 9 + -1s

Divide each side by '2'.
r = 4.5 + -0.5s

Simplifying
r = 4.5 + -0.5s

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