15x^2=16x+7

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Solution for 15x^2=16x+7 equation:


Simplifying
15x2 = 16x + 7

Reorder the terms:
15x2 = 7 + 16x

Solving
15x2 = 7 + 16x

Solving for variable 'x'.

Reorder the terms:
-7 + -16x + 15x2 = 7 + 16x + -7 + -16x

Reorder the terms:
-7 + -16x + 15x2 = 7 + -7 + 16x + -16x

Combine like terms: 7 + -7 = 0
-7 + -16x + 15x2 = 0 + 16x + -16x
-7 + -16x + 15x2 = 16x + -16x

Combine like terms: 16x + -16x = 0
-7 + -16x + 15x2 = 0

Factor a trinomial.
(-1 + -3x)(7 + -5x) = 0

Subproblem 1

Set the factor '(-1 + -3x)' equal to zero and attempt to solve: Simplifying -1 + -3x = 0 Solving -1 + -3x = 0 Move all terms containing x to the left, all other terms to the right. Add '1' to each side of the equation. -1 + 1 + -3x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3x = 0 + 1 -3x = 0 + 1 Combine like terms: 0 + 1 = 1 -3x = 1 Divide each side by '-3'. x = -0.3333333333 Simplifying x = -0.3333333333

Subproblem 2

Set the factor '(7 + -5x)' equal to zero and attempt to solve: Simplifying 7 + -5x = 0 Solving 7 + -5x = 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 + -5x = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -5x = 0 + -7 -5x = 0 + -7 Combine like terms: 0 + -7 = -7 -5x = -7 Divide each side by '-5'. x = 1.4 Simplifying x = 1.4

Solution

x = {-0.3333333333, 1.4}

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