x-0.20x=80

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Solution for x-0.20x=80 equation: 


Simplifying
x + -0.20x = 80

Combine like terms: x + -0.20x = 0.8x
0.8x = 80

Solving
0.8x = 80

Solving for variable 'x'.

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

Divide each side by '0.8'.
x = 100

Simplifying
x = 100

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