3x^2+3x-15=13-14x

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Solution for 3x^2+3x-15=13-14x equation:


Simplifying
3x2 + 3x + -15 = 13 + -14x

Reorder the terms:
-15 + 3x + 3x2 = 13 + -14x

Solving
-15 + 3x + 3x2 = 13 + -14x

Solving for variable 'x'.

Reorder the terms:
-15 + -13 + 3x + 14x + 3x2 = 13 + -14x + -13 + 14x

Combine like terms: -15 + -13 = -28
-28 + 3x + 14x + 3x2 = 13 + -14x + -13 + 14x

Combine like terms: 3x + 14x = 17x
-28 + 17x + 3x2 = 13 + -14x + -13 + 14x

Reorder the terms:
-28 + 17x + 3x2 = 13 + -13 + -14x + 14x

Combine like terms: 13 + -13 = 0
-28 + 17x + 3x2 = 0 + -14x + 14x
-28 + 17x + 3x2 = -14x + 14x

Combine like terms: -14x + 14x = 0
-28 + 17x + 3x2 = 0

Factor a trinomial.
(-7 + -1x)(4 + -3x) = 0

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve: Simplifying -7 + -1x = 0 Solving -7 + -1x = 0 Move all terms containing x to the left, all other terms to the right. Add '7' to each side of the equation. -7 + 7 + -1x = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1x = 0 + 7 -1x = 0 + 7 Combine like terms: 0 + 7 = 7 -1x = 7 Divide each side by '-1'. x = -7 Simplifying x = -7

Subproblem 2

Set the factor '(4 + -3x)' equal to zero and attempt to solve: Simplifying 4 + -3x = 0 Solving 4 + -3x = 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 + -3x = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3x = 0 + -4 -3x = 0 + -4 Combine like terms: 0 + -4 = -4 -3x = -4 Divide each side by '-3'. x = 1.333333333 Simplifying x = 1.333333333

Solution

x = {-7, 1.333333333}

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