x-20=-x

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Solution for x-20=-x equation:


Simplifying
x + -20 = -1x

Reorder the terms:
-20 + x = -1x

Solving
-20 + x = -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-20 + x + x = -1x + x

Combine like terms: x + x = 2x
-20 + 2x = -1x + x

Combine like terms: -1x + x = 0
-20 + 2x = 0

Add '20' to each side of the equation.
-20 + 20 + 2x = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 2x = 0 + 20
2x = 0 + 20

Combine like terms: 0 + 20 = 20
2x = 20

Divide each side by '2'.
x = 10

Simplifying
x = 10

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