7x+12=2x(x+6)

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Solution for 7x+12=2x(x+6) equation:


Simplifying
7x + 12 = 2x(x + 6)

Reorder the terms:
12 + 7x = 2x(x + 6)

Reorder the terms:
12 + 7x = 2x(6 + x)
12 + 7x = (6 * 2x + x * 2x)
12 + 7x = (12x + 2x2)

Solving
12 + 7x = 12x + 2x2

Solving for variable 'x'.

Combine like terms: 7x + -12x = -5x
12 + -5x + -2x2 = 12x + 2x2 + -12x + -2x2

Reorder the terms:
12 + -5x + -2x2 = 12x + -12x + 2x2 + -2x2

Combine like terms: 12x + -12x = 0
12 + -5x + -2x2 = 0 + 2x2 + -2x2
12 + -5x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
12 + -5x + -2x2 = 0

Factor a trinomial.
(3 + -2x)(4 + x) = 0

Subproblem 1

Set the factor '(3 + -2x)' equal to zero and attempt to solve: Simplifying 3 + -2x = 0 Solving 3 + -2x = 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 + -2x = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -2x = 0 + -3 -2x = 0 + -3 Combine like terms: 0 + -3 = -3 -2x = -3 Divide each side by '-2'. x = 1.5 Simplifying x = 1.5

Subproblem 2

Set the factor '(4 + x)' equal to zero and attempt to solve: Simplifying 4 + x = 0 Solving 4 + x = 0 Move all terms containing x to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + x = 0 + -4 x = 0 + -4 Combine like terms: 0 + -4 = -4 x = -4 Simplifying x = -4

Solution

x = {1.5, -4}

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