a=(18-x^2)-(6x^3+2x^2+2x+1)

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Solution for a=(18-x^2)-(6x^3+2x^2+2x+1) equation:


Simplifying
a = (18 + -1x2) + -1(6x3 + 2x2 + 2x + 1)

Remove parenthesis around (18 + -1x2)
a = 18 + -1x2 + -1(6x3 + 2x2 + 2x + 1)

Reorder the terms:
a = 18 + -1x2 + -1(1 + 2x + 2x2 + 6x3)
a = 18 + -1x2 + (1 * -1 + 2x * -1 + 2x2 * -1 + 6x3 * -1)
a = 18 + -1x2 + (-1 + -2x + -2x2 + -6x3)

Reorder the terms:
a = 18 + -1 + -2x + -1x2 + -2x2 + -6x3

Combine like terms: 18 + -1 = 17
a = 17 + -2x + -1x2 + -2x2 + -6x3

Combine like terms: -1x2 + -2x2 = -3x2
a = 17 + -2x + -3x2 + -6x3

Solving
a = 17 + -2x + -3x2 + -6x3

Solving for variable 'a'.

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

Simplifying
a = 17 + -2x + -3x2 + -6x3

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