5x^2+7x-1=-15x^2+5

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Solution for 5x^2+7x-1=-15x^2+5 equation:


Simplifying
5x2 + 7x + -1 = -15x2 + 5

Reorder the terms:
-1 + 7x + 5x2 = -15x2 + 5

Reorder the terms:
-1 + 7x + 5x2 = 5 + -15x2

Solving
-1 + 7x + 5x2 = 5 + -15x2

Solving for variable 'x'.

Reorder the terms:
-1 + -5 + 7x + 5x2 + 15x2 = 5 + -15x2 + -5 + 15x2

Combine like terms: -1 + -5 = -6
-6 + 7x + 5x2 + 15x2 = 5 + -15x2 + -5 + 15x2

Combine like terms: 5x2 + 15x2 = 20x2
-6 + 7x + 20x2 = 5 + -15x2 + -5 + 15x2

Reorder the terms:
-6 + 7x + 20x2 = 5 + -5 + -15x2 + 15x2

Combine like terms: 5 + -5 = 0
-6 + 7x + 20x2 = 0 + -15x2 + 15x2
-6 + 7x + 20x2 = -15x2 + 15x2

Combine like terms: -15x2 + 15x2 = 0
-6 + 7x + 20x2 = 0

Factor a trinomial.
(-3 + -4x)(2 + -5x) = 0

Subproblem 1

Set the factor '(-3 + -4x)' equal to zero and attempt to solve: Simplifying -3 + -4x = 0 Solving -3 + -4x = 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 + -4x = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4x = 0 + 3 -4x = 0 + 3 Combine like terms: 0 + 3 = 3 -4x = 3 Divide each side by '-4'. x = -0.75 Simplifying x = -0.75

Subproblem 2

Set the factor '(2 + -5x)' equal to zero and attempt to solve: Simplifying 2 + -5x = 0 Solving 2 + -5x = 0 Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -5x = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -5x = 0 + -2 -5x = 0 + -2 Combine like terms: 0 + -2 = -2 -5x = -2 Divide each side by '-5'. x = 0.4 Simplifying x = 0.4

Solution

x = {-0.75, 0.4}

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