(x-5)(-3x+7)-(x-5)=0

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Solution for (x-5)(-3x+7)-(x-5)=0 equation:


Simplifying
(x + -5)(-3x + 7) + -1(x + -5) = 0

Reorder the terms:
(-5 + x)(-3x + 7) + -1(x + -5) = 0

Reorder the terms:
(-5 + x)(7 + -3x) + -1(x + -5) = 0

Multiply (-5 + x) * (7 + -3x)
(-5(7 + -3x) + x(7 + -3x)) + -1(x + -5) = 0
((7 * -5 + -3x * -5) + x(7 + -3x)) + -1(x + -5) = 0
((-35 + 15x) + x(7 + -3x)) + -1(x + -5) = 0
(-35 + 15x + (7 * x + -3x * x)) + -1(x + -5) = 0
(-35 + 15x + (7x + -3x2)) + -1(x + -5) = 0

Combine like terms: 15x + 7x = 22x
(-35 + 22x + -3x2) + -1(x + -5) = 0

Reorder the terms:
-35 + 22x + -3x2 + -1(-5 + x) = 0
-35 + 22x + -3x2 + (-5 * -1 + x * -1) = 0
-35 + 22x + -3x2 + (5 + -1x) = 0

Reorder the terms:
-35 + 5 + 22x + -1x + -3x2 = 0

Combine like terms: -35 + 5 = -30
-30 + 22x + -1x + -3x2 = 0

Combine like terms: 22x + -1x = 21x
-30 + 21x + -3x2 = 0

Solving
-30 + 21x + -3x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(-10 + 7x + -1x2) = 0

Factor a trinomial.
3((-5 + x)(2 + -1x)) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-5 + x)' equal to zero and attempt to solve: Simplifying -5 + x = 0 Solving -5 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '5' to each side of the equation. -5 + 5 + x = 0 + 5 Combine like terms: -5 + 5 = 0 0 + x = 0 + 5 x = 0 + 5 Combine like terms: 0 + 5 = 5 x = 5 Simplifying x = 5

Subproblem 2

Set the factor '(2 + -1x)' equal to zero and attempt to solve: Simplifying 2 + -1x = 0 Solving 2 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1x = 0 + -2 -1x = 0 + -2 Combine like terms: 0 + -2 = -2 -1x = -2 Divide each side by '-1'. x = 2 Simplifying x = 2

Solution

x = {5, 2}

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