x^2-14x+21=-5x+3

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Solution for x^2-14x+21=-5x+3 equation:


Simplifying
x2 + -14x + 21 = -5x + 3

Reorder the terms:
21 + -14x + x2 = -5x + 3

Reorder the terms:
21 + -14x + x2 = 3 + -5x

Solving
21 + -14x + x2 = 3 + -5x

Solving for variable 'x'.

Reorder the terms:
21 + -3 + -14x + 5x + x2 = 3 + -5x + -3 + 5x

Combine like terms: 21 + -3 = 18
18 + -14x + 5x + x2 = 3 + -5x + -3 + 5x

Combine like terms: -14x + 5x = -9x
18 + -9x + x2 = 3 + -5x + -3 + 5x

Reorder the terms:
18 + -9x + x2 = 3 + -3 + -5x + 5x

Combine like terms: 3 + -3 = 0
18 + -9x + x2 = 0 + -5x + 5x
18 + -9x + x2 = -5x + 5x

Combine like terms: -5x + 5x = 0
18 + -9x + x2 = 0

Factor a trinomial.
(3 + -1x)(6 + -1x) = 0

Subproblem 1

Set the factor '(3 + -1x)' equal to zero and attempt to solve: Simplifying 3 + -1x = 0 Solving 3 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1x = 0 + -3 -1x = 0 + -3 Combine like terms: 0 + -3 = -3 -1x = -3 Divide each side by '-1'. x = 3 Simplifying x = 3

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve: Simplifying 6 + -1x = 0 Solving 6 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + -1x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -1x = 0 + -6 -1x = 0 + -6 Combine like terms: 0 + -6 = -6 -1x = -6 Divide each side by '-1'. x = 6 Simplifying x = 6

Solution

x = {3, 6}

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