2x^2-x-15=(2x+5)x

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Solution for 2x^2-x-15=(2x+5)x equation:


Simplifying
2x2 + -1x + -15 = (2x + 5) * x

Reorder the terms:
-15 + -1x + 2x2 = (2x + 5) * x

Reorder the terms:
-15 + -1x + 2x2 = (5 + 2x) * x

Reorder the terms for easier multiplication:
-15 + -1x + 2x2 = x(5 + 2x)
-15 + -1x + 2x2 = (5 * x + 2x * x)
-15 + -1x + 2x2 = (5x + 2x2)

Add '-2x2' to each side of the equation.
-15 + -1x + 2x2 + -2x2 = 5x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-15 + -1x + 0 = 5x + 2x2 + -2x2
-15 + -1x = 5x + 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-15 + -1x = 5x + 0
-15 + -1x = 5x

Solving
-15 + -1x = 5x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5x' to each side of the equation.
-15 + -1x + -5x = 5x + -5x

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

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

Add '15' to each side of the equation.
-15 + 15 + -6x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + -6x = 0 + 15
-6x = 0 + 15

Combine like terms: 0 + 15 = 15
-6x = 15

Divide each side by '-6'.
x = -2.5

Simplifying
x = -2.5

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