y^2-2x=3

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Solution for y^2-2x=3 equation: 


Simplifying
y2 + -2x = 3

Reorder the terms:
-2x + y2 = 3

Solving
-2x + y2 = 3

Solving for variable 'x'.

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

Add '-1y2' to each side of the equation.
-2x + y2 + -1y2 = 3 + -1y2

Combine like terms: y2 + -1y2 = 0
-2x + 0 = 3 + -1y2
-2x = 3 + -1y2

Divide each side by '-2'.
x = -1.5 + 0.5y2

Simplifying
x = -1.5 + 0.5y2

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