2+4r=20-2t

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Solution for 2+4r=20-2t equation: 


Simplifying
2 + 4r = 20 + -2t

Solving
2 + 4r = 20 + -2t

Solving for variable 'r'.

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

Add '-2' to each side of the equation.
2 + -2 + 4r = 20 + -2 + -2t

Combine like terms: 2 + -2 = 0
0 + 4r = 20 + -2 + -2t
4r = 20 + -2 + -2t

Combine like terms: 20 + -2 = 18
4r = 18 + -2t

Divide each side by '4'.
r = 4.5 + -0.5t

Simplifying
r = 4.5 + -0.5t

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