a=(20-2x)x

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Solution for a=(20-2x)x equation: 


Simplifying
a = (20 + -2x) * x

Reorder the terms for easier multiplication:
a = x(20 + -2x)
a = (20 * x + -2x * x)
a = (20x + -2x2)

Solving
a = 20x + -2x2

Solving for variable 'a'.

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

Simplifying
a = 20x + -2x2

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