X^2+21=2x

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Solution for X^2+21=2x equation:


Simplifying
X2 + 21 = 2x

Reorder the terms:
21 + X2 = 2x

Solving
21 + X2 = 2x

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 + X2 = -21 + 2x

Combine like terms: 21 + -21 = 0
0 + X2 = -21 + 2x
X2 = -21 + 2x

Simplifying
X2 = -21 + 2x

Reorder the terms:
21 + X2 + -2x = -21 + 2x + 21 + -2x

Reorder the terms:
21 + X2 + -2x = -21 + 21 + 2x + -2x

Combine like terms: -21 + 21 = 0
21 + X2 + -2x = 0 + 2x + -2x
21 + X2 + -2x = 2x + -2x

Combine like terms: 2x + -2x = 0
21 + X2 + -2x = 0

The solution to this equation could not be determined.

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