R+4=13-2r

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Solution for R+4=13-2r equation: 


Simplifying
R + 4 = 13 + -2r

Reorder the terms:
4 + R = 13 + -2r

Solving
4 + R = 13 + -2r

Solving for variable 'R'.

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

Add '-4' to each side of the equation.
4 + -4 + R = 13 + -4 + -2r

Combine like terms: 4 + -4 = 0
0 + R = 13 + -4 + -2r
R = 13 + -4 + -2r

Combine like terms: 13 + -4 = 9
R = 9 + -2r

Simplifying
R = 9 + -2r

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