9=(x-1)+9x^2

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Solution for 9=(x-1)+9x^2 equation:


Simplifying
9 = (x + -1) + 9x2

Reorder the terms:
9 = (-1 + x) + 9x2

Remove parenthesis around (-1 + x)
9 = -1 + x + 9x2

Solving
9 = -1 + x + 9x2

Solving for variable 'x'.

Combine like terms: 9 + 1 = 10
10 + -1x + -9x2 = -1 + x + 9x2 + 1 + -1x + -9x2

Reorder the terms:
10 + -1x + -9x2 = -1 + 1 + x + -1x + 9x2 + -9x2

Combine like terms: -1 + 1 = 0
10 + -1x + -9x2 = 0 + x + -1x + 9x2 + -9x2
10 + -1x + -9x2 = x + -1x + 9x2 + -9x2

Combine like terms: x + -1x = 0
10 + -1x + -9x2 = 0 + 9x2 + -9x2
10 + -1x + -9x2 = 9x2 + -9x2

Combine like terms: 9x2 + -9x2 = 0
10 + -1x + -9x2 = 0

Factor a trinomial.
(1 + -1x)(10 + 9x) = 0

Subproblem 1

Set the factor '(1 + -1x)' equal to zero and attempt to solve: Simplifying 1 + -1x = 0 Solving 1 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1x = 0 + -1 -1x = 0 + -1 Combine like terms: 0 + -1 = -1 -1x = -1 Divide each side by '-1'. x = 1 Simplifying x = 1

Subproblem 2

Set the factor '(10 + 9x)' equal to zero and attempt to solve: Simplifying 10 + 9x = 0 Solving 10 + 9x = 0 Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + 9x = 0 + -10 Combine like terms: 10 + -10 = 0 0 + 9x = 0 + -10 9x = 0 + -10 Combine like terms: 0 + -10 = -10 9x = -10 Divide each side by '9'. x = -1.111111111 Simplifying x = -1.111111111

Solution

x = {1, -1.111111111}

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