x^2-9x=4x+48

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Solution for x^2-9x=4x+48 equation:


Simplifying
x2 + -9x = 4x + 48

Reorder the terms:
-9x + x2 = 4x + 48

Reorder the terms:
-9x + x2 = 48 + 4x

Solving
-9x + x2 = 48 + 4x

Solving for variable 'x'.

Reorder the terms:
-48 + -9x + -4x + x2 = 48 + 4x + -48 + -4x

Combine like terms: -9x + -4x = -13x
-48 + -13x + x2 = 48 + 4x + -48 + -4x

Reorder the terms:
-48 + -13x + x2 = 48 + -48 + 4x + -4x

Combine like terms: 48 + -48 = 0
-48 + -13x + x2 = 0 + 4x + -4x
-48 + -13x + x2 = 4x + -4x

Combine like terms: 4x + -4x = 0
-48 + -13x + x2 = 0

Factor a trinomial.
(-3 + -1x)(16 + -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 '(16 + -1x)' equal to zero and attempt to solve: Simplifying 16 + -1x = 0 Solving 16 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + -1x = 0 + -16 Combine like terms: 16 + -16 = 0 0 + -1x = 0 + -16 -1x = 0 + -16 Combine like terms: 0 + -16 = -16 -1x = -16 Divide each side by '-1'. x = 16 Simplifying x = 16

Solution

x = {-3, 16}

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