2800=x-(x*0.2)

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Solution for 2800=x-(x*0.2) equation:


Simplifying
2800 = x + -1(x * 0.2)

Reorder the terms for easier multiplication:
2800 = x + -1(0.2x)

Remove parenthesis around (0.2x)
2800 = x + -1 * 0.2x

Multiply -1 * 0.2
2800 = x + -0.2x

Combine like terms: x + -0.2x = 0.8x
2800 = 0.8x

Solving
2800 = 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.
2800 + -0.8x = 0.8x + -0.8x

Combine like terms: 0.8x + -0.8x = 0.0
2800 + -0.8x = 0.0

Add '-2800' to each side of the equation.
2800 + -2800 + -0.8x = 0.0 + -2800

Combine like terms: 2800 + -2800 = 0
0 + -0.8x = 0.0 + -2800
-0.8x = 0.0 + -2800

Combine like terms: 0.0 + -2800 = -2800
-0.8x = -2800

Divide each side by '-0.8'.
x = 3500

Simplifying
x = 3500

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