x(x-15)=3(x-27)

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Solution for x(x-15)=3(x-27) equation:


Simplifying
x(x + -15) = 3(x + -27)

Reorder the terms:
x(-15 + x) = 3(x + -27)
(-15 * x + x * x) = 3(x + -27)
(-15x + x2) = 3(x + -27)

Reorder the terms:
-15x + x2 = 3(-27 + x)
-15x + x2 = (-27 * 3 + x * 3)
-15x + x2 = (-81 + 3x)

Solving
-15x + x2 = -81 + 3x

Solving for variable 'x'.

Reorder the terms:
81 + -15x + -3x + x2 = -81 + 3x + 81 + -3x

Combine like terms: -15x + -3x = -18x
81 + -18x + x2 = -81 + 3x + 81 + -3x

Reorder the terms:
81 + -18x + x2 = -81 + 81 + 3x + -3x

Combine like terms: -81 + 81 = 0
81 + -18x + x2 = 0 + 3x + -3x
81 + -18x + x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
81 + -18x + x2 = 0

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

Subproblem 1

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Subproblem 2

Set the factor '(9 + -1x)' equal to zero and attempt to solve: Simplifying 9 + -1x = 0 Solving 9 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1x = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1x = 0 + -9 -1x = 0 + -9 Combine like terms: 0 + -9 = -9 -1x = -9 Divide each side by '-1'. x = 9 Simplifying x = 9

Solution

x = {9, 9}

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