t+2r=39

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Solution for t+2r=39 equation: 


Simplifying
t + 2r = 39

Reorder the terms:
2r + t = 39

Solving
2r + t = 39

Solving for variable 'r'.

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

Add '-1t' to each side of the equation.
2r + t + -1t = 39 + -1t

Combine like terms: t + -1t = 0
2r + 0 = 39 + -1t
2r = 39 + -1t

Divide each side by '2'.
r = 19.5 + -0.5t

Simplifying
r = 19.5 + -0.5t

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