-4x(x-7)+6(2x-7)=3x-9x

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Solution for -4x(x-7)+6(2x-7)=3x-9x equation:


Simplifying
-4x(x + -7) + 6(2x + -7) = 3x + -9x

Reorder the terms:
-4x(-7 + x) + 6(2x + -7) = 3x + -9x
(-7 * -4x + x * -4x) + 6(2x + -7) = 3x + -9x
(28x + -4x2) + 6(2x + -7) = 3x + -9x

Reorder the terms:
28x + -4x2 + 6(-7 + 2x) = 3x + -9x
28x + -4x2 + (-7 * 6 + 2x * 6) = 3x + -9x
28x + -4x2 + (-42 + 12x) = 3x + -9x

Reorder the terms:
-42 + 28x + 12x + -4x2 = 3x + -9x

Combine like terms: 28x + 12x = 40x
-42 + 40x + -4x2 = 3x + -9x

Combine like terms: 3x + -9x = -6x
-42 + 40x + -4x2 = -6x

Solving
-42 + 40x + -4x2 = -6x

Solving for variable 'x'.

Reorder the terms:
-42 + 40x + 6x + -4x2 = -6x + 6x

Combine like terms: 40x + 6x = 46x
-42 + 46x + -4x2 = -6x + 6x

Combine like terms: -6x + 6x = 0
-42 + 46x + -4x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-21 + 23x + -2x2) = 0

Factor a trinomial.
2((-21 + 2x)(1 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-21 + 2x)' equal to zero and attempt to solve: Simplifying -21 + 2x = 0 Solving -21 + 2x = 0 Move all terms containing x to the left, all other terms to the right. Add '21' to each side of the equation. -21 + 21 + 2x = 0 + 21 Combine like terms: -21 + 21 = 0 0 + 2x = 0 + 21 2x = 0 + 21 Combine like terms: 0 + 21 = 21 2x = 21 Divide each side by '2'. x = 10.5 Simplifying x = 10.5

Subproblem 2

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

Solution

x = {10.5, 1}

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