x-x*0.2=12990

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Solution for x-x*0.2=12990 equation: 


Simplifying
x + -1x * 0.2 = 12990

Reorder the terms for easier multiplication:
x + -1 * 0.2x = 12990

Multiply -1 * 0.2
x + -0.2x = 12990

Combine like terms: x + -0.2x = 0.8x
0.8x = 12990

Solving
0.8x = 12990

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 = 16237.5

Simplifying
x = 16237.5

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