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3737.385=3.14*r*r
We simplify the equation to the form, which is simple to understand
3737.385=3.14*r*r
We move all terms containing r to the left and all other terms to the right.
+3737.385r=0
We simplify left and right side of the equation.
+3737.385r=0
We divide both sides of the equation by 3737.385 to get r.
r=0
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