x*2-289=0

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Solution for x*2-289=0 equation:


Simplifying
x * 2 + -289 = 0

Reorder the terms for easier multiplication:
2x + -289 = 0

Reorder the terms:
-289 + 2x = 0

Solving
-289 + 2x = 0

Solving for variable 'x'.

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

Add '289' to each side of the equation.
-289 + 289 + 2x = 0 + 289

Combine like terms: -289 + 289 = 0
0 + 2x = 0 + 289
2x = 0 + 289

Combine like terms: 0 + 289 = 289
2x = 289

Divide each side by '2'.
x = 144.5

Simplifying
x = 144.5

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