(4x^2+2x-5)+(2x^2+9x+15)-(6x^2-13)=

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Solution for (4x^2+2x-5)+(2x^2+9x+15)-(6x^2-13)= equation:


Simplifying
(4x2 + 2x + -5) + (2x2 + 9x + 15) + -1(6x2 + -13) = 0

Reorder the terms:
(-5 + 2x + 4x2) + (2x2 + 9x + 15) + -1(6x2 + -13) = 0

Remove parenthesis around (-5 + 2x + 4x2)
-5 + 2x + 4x2 + (2x2 + 9x + 15) + -1(6x2 + -13) = 0

Reorder the terms:
-5 + 2x + 4x2 + (15 + 9x + 2x2) + -1(6x2 + -13) = 0

Remove parenthesis around (15 + 9x + 2x2)
-5 + 2x + 4x2 + 15 + 9x + 2x2 + -1(6x2 + -13) = 0

Reorder the terms:
-5 + 2x + 4x2 + 15 + 9x + 2x2 + -1(-13 + 6x2) = 0
-5 + 2x + 4x2 + 15 + 9x + 2x2 + (-13 * -1 + 6x2 * -1) = 0
-5 + 2x + 4x2 + 15 + 9x + 2x2 + (13 + -6x2) = 0

Reorder the terms:
-5 + 15 + 13 + 2x + 9x + 4x2 + 2x2 + -6x2 = 0

Combine like terms: -5 + 15 = 10
10 + 13 + 2x + 9x + 4x2 + 2x2 + -6x2 = 0

Combine like terms: 10 + 13 = 23
23 + 2x + 9x + 4x2 + 2x2 + -6x2 = 0

Combine like terms: 2x + 9x = 11x
23 + 11x + 4x2 + 2x2 + -6x2 = 0

Combine like terms: 4x2 + 2x2 = 6x2
23 + 11x + 6x2 + -6x2 = 0

Combine like terms: 6x2 + -6x2 = 0
23 + 11x + 0 = 0
23 + 11x = 0

Solving
23 + 11x = 0

Solving for variable 'x'.

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

Add '-23' to each side of the equation.
23 + -23 + 11x = 0 + -23

Combine like terms: 23 + -23 = 0
0 + 11x = 0 + -23
11x = 0 + -23

Combine like terms: 0 + -23 = -23
11x = -23

Divide each side by '11'.
x = -2.090909091

Simplifying
x = -2.090909091

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