20=x-.20x

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Solution for 20=x-.20x equation:


Simplifying
20 = x + -0.20x

Combine like terms: x + -0.20x = 0.8x
20 = 0.8x

Solving
20 = 0.8x

Solving for variable 'x'.

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

Add '-0.8x' to each side of the equation.
20 + -0.8x = 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
20 + -0.8x = 0.0

Add '-20' to each side of the equation.
20 + -20 + -0.8x = 0.0 + -20

Combine like terms: 20 + -20 = 0
0 + -0.8x = 0.0 + -20
-0.8x = 0.0 + -20

Combine like terms: 0.0 + -20 = -20
-0.8x = -20

Divide each side by '-0.8'.
x = 25

Simplifying
x = 25

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