2x^2-a=yb

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Solution for 2x^2-a=yb equation: 


Simplifying
2x2 + -1a = yb

Reorder the terms:
-1a + 2x2 = yb

Solving
-1a + 2x2 = by

Solving for variable 'a'.

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

Add '-2x2' to each side of the equation.
-1a + 2x2 + -2x2 = by + -2x2

Combine like terms: 2x2 + -2x2 = 0
-1a + 0 = by + -2x2
-1a = by + -2x2

Divide each side by '-1'.
a = -1by + 2x2

Simplifying
a = -1by + 2x2

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