216(3r)*(36r)=216

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Solution for 216(3r)*(36r)=216 equation: 


Simplifying
216(3r)(36r) = 216

Remove parenthesis around (3r)
216 * 3r(36r) = 216

Remove parenthesis around (36r)
216 * 3r * 36r = 216

Reorder the terms for easier multiplication:
216 * 3 * 36r * r = 216

Multiply 216 * 3
648 * 36r * r = 216

Multiply 648 * 36
23328r * r = 216

Multiply r * r
23328r2 = 216

Solving
23328r2 = 216

Solving for variable 'r'.

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

Divide each side by '23328'.
r2 = 0.009259259259

Simplifying
r2 = 0.009259259259

Take the square root of each side:
r = {-0.096225045, 0.096225045}

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