4R-1r=9

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Solution for 4R-1r=9 equation: 


Simplifying
4R + -1r = 9

Solving
4R + -1r = 9

Solving for variable 'R'.

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

Add 'r' to each side of the equation.
4R + -1r + r = 9 + r

Combine like terms: -1r + r = 0
4R + 0 = 9 + r
4R = 9 + r

Divide each side by '4'.
R = 2.25 + 0.25r

Simplifying
R = 2.25 + 0.25r

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