8=2*pi*r

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Solution for 8=2*pi*r equation:


Simplifying
8 = 2pi * r

Multiply ip * r
8 = 2ipr

Solving
8 = 2ipr

Solving for variable 'i'.

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

Add '-2ipr' to each side of the equation.
8 + -2ipr = 2ipr + -2ipr

Combine like terms: 2ipr + -2ipr = 0
8 + -2ipr = 0

Add '-8' to each side of the equation.
8 + -8 + -2ipr = 0 + -8

Combine like terms: 8 + -8 = 0
0 + -2ipr = 0 + -8
-2ipr = 0 + -8

Combine like terms: 0 + -8 = -8
-2ipr = -8

Divide each side by '-2pr'.
i = 4p-1r-1

Simplifying
i = 4p-1r-1

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