(3x+5y)-(9x^2+-4x)=a

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Solution for (3x+5y)-(9x^2+-4x)=a equation: 


Simplifying
(3x + 5y) + -1(9x2 + -4x) = a

Remove parenthesis around (3x + 5y)
3x + 5y + -1(9x2 + -4x) = a

Reorder the terms:
3x + 5y + -1(-4x + 9x2) = a
3x + 5y + (-4x * -1 + 9x2 * -1) = a
3x + 5y + (4x + -9x2) = a

Reorder the terms:
3x + 4x + -9x2 + 5y = a

Combine like terms: 3x + 4x = 7x
7x + -9x2 + 5y = a

Solving
7x + -9x2 + 5y = a

Solving for variable 'x'.

Reorder the terms:
-1a + 7x + -9x2 + 5y = a + -1a

Combine like terms: a + -1a = 0
-1a + 7x + -9x2 + 5y = 0

The solution to this equation could not be determined.

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