-x-9=-9-4x

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Solution for -x-9=-9-4x equation:


Simplifying
-1x + -9 = -9 + -4x

Reorder the terms:
-9 + -1x = -9 + -4x

Add '9' to each side of the equation.
-9 + 9 + -1x = -9 + 9 + -4x

Combine like terms: -9 + 9 = 0
0 + -1x = -9 + 9 + -4x
-1x = -9 + 9 + -4x

Combine like terms: -9 + 9 = 0
-1x = 0 + -4x
-1x = -4x

Solving
-1x = -4x

Solving for variable 'x'.

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

Add '4x' to each side of the equation.
-1x + 4x = -4x + 4x

Combine like terms: -1x + 4x = 3x
3x = -4x + 4x

Combine like terms: -4x + 4x = 0
3x = 0

Divide each side by '3'.
x = 0

Simplifying
x = 0

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