188.4=(2*3.14)*r*10

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Solution for 188.4=(2*3.14)*r*10 equation: 


Simplifying
188.4 = (2 * 3.14) * r * 10

Multiply 2 * 3.14
188.4 = (6.28) * r * 10

Reorder the terms for easier multiplication:
188.4 = 6.28 * 10r

Multiply 6.28 * 10
188.4 = 62.8r

Solving
188.4 = 62.8r

Solving for variable 'r'.

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

Add '-62.8r' to each side of the equation.
188.4 + -62.8r = 62.8r + -62.8r

Combine like terms: 62.8r + -62.8r = 0.0
188.4 + -62.8r = 0.0

Add '-188.4' to each side of the equation.
188.4 + -188.4 + -62.8r = 0.0 + -188.4

Combine like terms: 188.4 + -188.4 = 0.0
0.0 + -62.8r = 0.0 + -188.4
-62.8r = 0.0 + -188.4

Combine like terms: 0.0 + -188.4 = -188.4
-62.8r = -188.4

Divide each side by '-62.8'.
r = 3

Simplifying
r = 3

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