2x^3+21=5

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Solution for 2x^3+21=5 equation:


Simplifying
2x3 + 21 = 5

Reorder the terms:
21 + 2x3 = 5

Solving
21 + 2x3 = 5

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + 2x3 = 5 + -21

Combine like terms: 21 + -21 = 0
0 + 2x3 = 5 + -21
2x3 = 5 + -21

Combine like terms: 5 + -21 = -16
2x3 = -16

Divide each side by '2'.
x3 = -8

Simplifying
x3 = -8

Reorder the terms:
8 + x3 = -8 + 8

Combine like terms: -8 + 8 = 0
8 + x3 = 0

The solution to this equation could not be determined.

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