9r^3-27=0

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Solution for 9r^3-27=0 equation:


Simplifying
9r3 + -27 = 0

Reorder the terms:
-27 + 9r3 = 0

Solving
-27 + 9r3 = 0

Solving for variable 'r'.

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

Add '27' to each side of the equation.
-27 + 27 + 9r3 = 0 + 27

Combine like terms: -27 + 27 = 0
0 + 9r3 = 0 + 27
9r3 = 0 + 27

Combine like terms: 0 + 27 = 27
9r3 = 27

Divide each side by '9'.
r3 = 3

Simplifying
r3 = 3

Reorder the terms:
-3 + r3 = 3 + -3

Combine like terms: 3 + -3 = 0
-3 + r3 = 0

The solution to this equation could not be determined.

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