(9x^2+2x-9)-(9x^2+12x+2)=

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Solution for (9x^2+2x-9)-(9x^2+12x+2)= equation:


Simplifying
(9x2 + 2x + -9) + -1(9x2 + 12x + 2) = 0

Reorder the terms:
(-9 + 2x + 9x2) + -1(9x2 + 12x + 2) = 0

Remove parenthesis around (-9 + 2x + 9x2)
-9 + 2x + 9x2 + -1(9x2 + 12x + 2) = 0

Reorder the terms:
-9 + 2x + 9x2 + -1(2 + 12x + 9x2) = 0
-9 + 2x + 9x2 + (2 * -1 + 12x * -1 + 9x2 * -1) = 0
-9 + 2x + 9x2 + (-2 + -12x + -9x2) = 0

Reorder the terms:
-9 + -2 + 2x + -12x + 9x2 + -9x2 = 0

Combine like terms: -9 + -2 = -11
-11 + 2x + -12x + 9x2 + -9x2 = 0

Combine like terms: 2x + -12x = -10x
-11 + -10x + 9x2 + -9x2 = 0

Combine like terms: 9x2 + -9x2 = 0
-11 + -10x + 0 = 0
-11 + -10x = 0

Solving
-11 + -10x = 0

Solving for variable 'x'.

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

Add '11' to each side of the equation.
-11 + 11 + -10x = 0 + 11

Combine like terms: -11 + 11 = 0
0 + -10x = 0 + 11
-10x = 0 + 11

Combine like terms: 0 + 11 = 11
-10x = 11

Divide each side by '-10'.
x = -1.1

Simplifying
x = -1.1

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