8x^2-4x^2-4x^2-8x-4x=20-4+8

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Solution for 8x^2-4x^2-4x^2-8x-4x=20-4+8 equation: 


Simplifying
8x2 + -4x2 + -4x2 + -8x + -4x = 20 + -4 + 8

Reorder the terms:
-8x + -4x + 8x2 + -4x2 + -4x2 = 20 + -4 + 8

Combine like terms: -8x + -4x = -12x
-12x + 8x2 + -4x2 + -4x2 = 20 + -4 + 8

Combine like terms: 8x2 + -4x2 = 4x2
-12x + 4x2 + -4x2 = 20 + -4 + 8

Combine like terms: 4x2 + -4x2 = 0
-12x + 0 = 20 + -4 + 8
-12x = 20 + -4 + 8

Combine like terms: 20 + -4 = 16
-12x = 16 + 8

Combine like terms: 16 + 8 = 24
-12x = 24

Solving
-12x = 24

Solving for variable 'x'.

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

Divide each side by '-12'.
x = -2

Simplifying
x = -2

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