r=51-2r

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Solution for r=51-2r equation: 


Simplifying
r = 51 + -2r

Solving
r = 51 + -2r

Solving for variable 'r'.

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

Add '2r' to each side of the equation.
r + 2r = 51 + -2r + 2r

Combine like terms: r + 2r = 3r
3r = 51 + -2r + 2r

Combine like terms: -2r + 2r = 0
3r = 51 + 0
3r = 51

Divide each side by '3'.
r = 17

Simplifying
r = 17

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