7-9s=4r

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Solution for 7-9s=4r equation: 


Simplifying
7 + -9s = 4r

Solving
7 + -9s = 4r

Solving for variable 's'.

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

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

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

Divide each side by '-9'.
s = 0.7777777778 + -0.4444444444r

Simplifying
s = 0.7777777778 + -0.4444444444r

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