4r+7s=9

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Solution for 4r+7s=9 equation: 


Simplifying
4r + 7s = 9

Solving
4r + 7s = 9

Solving for variable 'r'.

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

Add '-7s' to each side of the equation.
4r + 7s + -7s = 9 + -7s

Combine like terms: 7s + -7s = 0
4r + 0 = 9 + -7s
4r = 9 + -7s

Divide each side by '4'.
r = 2.25 + -1.75s

Simplifying
r = 2.25 + -1.75s

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