x=100+.8x

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Solution for x=100+.8x equation: 


Simplifying
x = 100 + 0.8x

Solving
x = 100 + 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.
x + -0.8x = 100 + 0.8x + -0.8x

Combine like terms: x + -0.8x = 0.2x
0.2x = 100 + 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
0.2x = 100 + 0.0
0.2x = 100

Divide each side by '0.2'.
x = 500

Simplifying
x = 500

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