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Simplifying
6358 = 3.14r2
Solving
6358 = 3.14r2
Solving for variable 'r'.
Move all terms containing r to the left, all other terms to the right.
Add '-3.14r2' to each side of the equation.
6358 + -3.14r2 = 3.14r2 + -3.14r2
Combine like terms: 3.14r2 + -3.14r2 = 0.00
6358 + -3.14r2 = 0.00
Add '-6358' to each side of the equation.
6358 + -6358 + -3.14r2 = 0.00 + -6358
Combine like terms: 6358 + -6358 = 0
0 + -3.14r2 = 0.00 + -6358
-3.14r2 = 0.00 + -6358
Combine like terms: 0.00 + -6358 = -6358
-3.14r2 = -6358
Divide each side by '-3.14'.
r2 = 2024.840764
Simplifying
r2 = 2024.840764
Take the square root of each side:
r = {-44.998230676, 44.998230676}
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