(-x-4)=(x+9)

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Solution for (-x-4)=(x+9) equation:


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

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

Remove parenthesis around (-4 + -1x)
-4 + -1x = (x + 9)

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

Remove parenthesis around (9 + x)
-4 + -1x = 9 + x

Solving
-4 + -1x = 9 + x

Solving for variable 'x'.

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

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

Combine like terms: -1x + -1x = -2x
-4 + -2x = 9 + x + -1x

Combine like terms: x + -1x = 0
-4 + -2x = 9 + 0
-4 + -2x = 9

Add '4' to each side of the equation.
-4 + 4 + -2x = 9 + 4

Combine like terms: -4 + 4 = 0
0 + -2x = 9 + 4
-2x = 9 + 4

Combine like terms: 9 + 4 = 13
-2x = 13

Divide each side by '-2'.
x = -6.5

Simplifying
x = -6.5

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