25.1=2*3.14r

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Solution for 25.1=2*3.14r equation: 


Simplifying
25.1 = 2 * 3.14r

Multiply 2 * 3.14
25.1 = 6.28r

Solving
25.1 = 6.28r

Solving for variable 'r'.

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

Add '-6.28r' to each side of the equation.
25.1 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
25.1 + -6.28r = 0.00

Add '-25.1' to each side of the equation.
25.1 + -25.1 + -6.28r = 0.00 + -25.1

Combine like terms: 25.1 + -25.1 = 0.0
0.0 + -6.28r = 0.00 + -25.1
-6.28r = 0.00 + -25.1

Combine like terms: 0.00 + -25.1 = -25.1
-6.28r = -25.1

Divide each side by '-6.28'.
r = 3.996815287

Simplifying
r = 3.996815287

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