2R=15-r

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Solution for 2R=15-r equation: 


Simplifying
2R = 15 + -1r

Solving
2R = 15 + -1r

Solving for variable 'R'.

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

Divide each side by '2'.
R = 7.5 + -0.5r

Simplifying
R = 7.5 + -0.5r

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