-4x-20=8x+9

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Solution for -4x-20=8x+9 equation:


Simplifying
-4x + -20 = 8x + 9

Reorder the terms:
-20 + -4x = 8x + 9

Reorder the terms:
-20 + -4x = 9 + 8x

Solving
-20 + -4x = 9 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
-20 + -4x + -8x = 9 + 8x + -8x

Combine like terms: -4x + -8x = -12x
-20 + -12x = 9 + 8x + -8x

Combine like terms: 8x + -8x = 0
-20 + -12x = 9 + 0
-20 + -12x = 9

Add '20' to each side of the equation.
-20 + 20 + -12x = 9 + 20

Combine like terms: -20 + 20 = 0
0 + -12x = 9 + 20
-12x = 9 + 20

Combine like terms: 9 + 20 = 29
-12x = 29

Divide each side by '-12'.
x = -2.416666667

Simplifying
x = -2.416666667

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