8=(2)(3.14)(r)

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Solution for 8=(2)(3.14)(r) equation: 


Simplifying
8 = (2)(3.14)(r)

Multiply 2 * 3.14
8 = 6.28r

Solving
8 = 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.
8 + -6.28r = 6.28r + -6.28r

Combine like terms: 6.28r + -6.28r = 0.00
8 + -6.28r = 0.00

Add '-8' to each side of the equation.
8 + -8 + -6.28r = 0.00 + -8

Combine like terms: 8 + -8 = 0
0 + -6.28r = 0.00 + -8
-6.28r = 0.00 + -8

Combine like terms: 0.00 + -8 = -8
-6.28r = -8

Divide each side by '-6.28'.
r = 1.27388535

Simplifying
r = 1.27388535

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